Resource Type: Books, Reports, Papers, and Research Articles
This Synthesis of Practice focuses on speed management for work zones on roadways with ordinary (pre-construction) speed limits of 45 mph and above such as freeways, tollways, multilane divided rural …MoreManaging Speeds
Featured Items:
SWZ: Technology Applications Types of Applications: Automated Enforcement
Automated enforcement systems detect and capture images of speeding vehicles to be used for enforcement purposes.
Fact sheet on automated enforcement systems in work zones
Evaluation of an a… More
SWZ: Technology Applications: Types of Applications: Variable Speed Limit
Variable speed limit systems strive to harmonize speeds approaching and within the work zone, calming traffic flow and warning of slowed or stopped traffic ahead.
Concept of Operations for Us… More
Guidelines on Use of Law Enforcement in Work Zones (Publication)
Resource Type: Manuals, Policies, Guidelines, and Handbooks, etc.
Guidelines on Use of Uniformed Law Enforcement (Subpart K) describes good practices for use of law enforcement to improve work zone safety and mobility. The document is intended to assist highway agen…MoreGuidelines on Managing Speeds in Work Zones (Publication)
Resource Type: Manuals, Policies, Guidelines, and Handbooks, etc.
Guidelines on Managing Speeds in Work Zones summarizes available guidance on setting speed limits and managing speeds in work zones. Many factors impact the decision to reduce the regulatory speed lim…More2009 National Traffic Management & Work Zone Safety Conference
The acclaimed Traffic Management & Work Zone Safety Conference managed by the ARTBA - Transportation Development Foundation was held March 9-13 in Orlando, Florida, in conjunction with World o… More
Influence of Truck-Mounted Radar Speed Signs in Controlling Vehicle Speed for Mobile Maintenance Operations: Oregon Case Study (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Radar speed signs (RSSs) are a measure for reducing traffic flow speeds through work zones. The influence of truck-mounted RSSs on vehicle speed was evaluated for mobile maintenance operations in two …MoreWork Zone Sign Design for Increased Driver Compliance and Worker Safety (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Many studies have investigated the effect of dynamic message signs (DMS) on drivers’ speed reduction and compliance in work zones, yet only a few studies have examined the design of sign content of …MoreHighway Construction Work-Zone Safety: Effectiveness of Traffic-Control Devices (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Pavement preservation is a proactive approach to maintaining existing highways. Freeway-preservation projects typically require construction workers to conduct their work in close proximity to ongoing…MoreField Measurements on the Effect of Temporary Rumble Strips in Work Zone Flagging Operations (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Limited-scale field measurements were collected to quantify the impact of two temporary rumble strip (TRS) layouts at two different two-lane roadway construction projects in Iowa. The field work was n…MoreSetting Work Zone Speed Limits (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Increasing travel demands and an aging highway infrastructure drive the need for extensive construction, maintenance, and utility work zones. The introduction of work zone environments creates risks f…MoreImpact of Advisory Signs on Vehicle Speeds in Highway Nighttime Paving Project Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Pavement preservation projects typically require construction workers to conduct their work in close proximity to ongoing traffic. During paving operations, workers are located within a protected work…MoreVariable Speed Limit Study Upstream of an Indiana Work Zone with Vehicle Matching (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Traffic management in work zones presents significant mobility and safety challenges for agencies. The goals of a work zone traffic management plan are to safely slow vehicles ahead of the work zone, …MoreEditorial: We Need More, Not Fewer, Construction Work-Zone Cameras (Publication)
Resource Type: News and Other Non-research Articles
Radar-cameras have been proved to be effective in reducing speeding. Currently 12 states have radar-camera speed-limit enforcement in at least one location, seven states allow its limited use, and …MoreTowards a European Guideline for Speed Management Measures in Work Zones (Publication)
Resource Type: Articles
Speed management in work zones is important to ensure that the driver safely can navigate the vehicle through the work zone routing. The ASAP project, Appropriate Speed saves All People, was designed …MoreMaryland Police, Highway Agency Deploy Speed Cameras in I-70 Work Zone (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Maryland state police are deploying the "Safezones" automated speed enforcement system with cameras along a work zone on eastbound Interstate 70. According to Maryland State Highway Administrati…MoreEvaluation of Photo Speed Enforcement (PSE) in California Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Exceeding the speed limit in highway work zones is a safety problem for highway workers and the traveling public. Adherence to the posted speed limits can provide safety benefits by reducing the numbe…MoreExamining the Impact of ASE (Automated Speed Enforcement) in Work Zones on Driver Attention (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Each year, there are over 500 fatal crashes in work zones in the U.S., with over 100 road construction workers killed on work sites (NSC, 2011; FARS, 2011). Speed and distraction are among the top con…MoreWork Zone Speed Management: Synthesis of Highway Practice (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This Synthesis of Practice focuses on speed management for work zones on roadways with ordinary (pre-construction) speed limits of 45 mph and above such as freeways, tollways, multilane divided rural …MoreSWZ: Technology Applications Types of Applications: Automated Enforcement
Automated enforcement systems detect and capture images of speeding vehicles to be used for enforcement purposes.
Fact sheet on automated enforcement systems in work zones
Evaluation of an a… More
SWZ: Technology Applications: Types of Applications: Variable Speed Limit
Variable speed limit systems strive to harmonize speeds approaching and within the work zone, calming traffic flow and warning of slowed or stopped traffic ahead.
Concept of Operations for Us… More
TRB Webinar: Work Zone Speed Management (Training)
TRB conducted a webinar on November 12, 2015 that provided an overview of the information synthesized in NCHRP Synthesis 482, "Work Zone Speed Management." This webinar discussed what is known about t… More
Pa. Legislators Consider Cameras to Slow Down Drivers in Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
Senate Bill 840, co-sponsored by Sens. David Argall, R-Schuylkill, and Judith Schwank, D-Berks, would establish a five-year pilot program to place speed cameras in work zones. Drivers who are caught g…MoreUsing Portable Changeable Message Signs to Control Speeding in Work Zones (Training)
The relatively large and conspicuous message displays of portable changeable message signs (PCMS) make them effective for providing work zone guidance and warning messages to drivers. This brief pod… More
Using Portable Changeable Message Signs to Control Speeding in Work Zones
Podcast:
Play (To download, right-click on the link and choose Save Target as … to save to your local drive.)
Script:
PDF Version
Hello and welcome to the American Traffic Safety Service… More
Work Zone Features Influencing Driver Speeds at Roadworks: Worker, Driver and Expert Views (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Roadworks are essential to a safe and efficient road network, yet somewhat paradoxically the necessary work is often associated with increased risk to motorists and workers, as well as with traffic fl…MoreKentucky Transportation Cabinet Testing Safety in Construction Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Kentucky Transportation Cabinet is testing road bumps, a new way to slow down motorists in construction zones, on the Audubon Parkway in western Kentucky. Officials say if the results look promisi…MoreWork Zones and Travel Speeds: The Effects of Uniform Traffic Officers & Other Speed Management Measures (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Improving safety conditions in work zones, for both the workers as well as the travelers, is a major national concern, especially in light of the country’s aging transportation infrastructure that r…MoreSafe and Effective Speed Reductions for Freeway Work Zones: Phase 2 (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Freeway preservation projects typically require construction workers to conduct their work in close proximity to ongoing traffic and often reduce traffic flow to a single lane while work is undertaken…MoreCameras Sought for Work Zones on Pennsylvania Highways (Publication)
Resource Type: Articles, News and Other Non-research Articles
Associated Pennsylvania Constructors and its over 400 members will push for legislation allowing the use of cameras to enforce speed limits in work zones. The group expressed concern that a higher spe…MoreReduction of Speed in Work Zones Using ITS DMS Instant Feedback to Drivers: Vehicle Speed Versus Traffic Fine (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Accidents in work zones produced 17 fatalities in Arizona and 840 fatalities and over 40,000 injuries nationally in 2009. Motorists nationwide can expect to drive through one active work zone for ever…MoreEvaluation of Ohio Work Zone Speed Zones Process (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This report describes the methodology and results of analyses performed to determine the effectiveness of Ohio Department of Transportation processes for establishing work zone speed zones. Researcher…MoreOptions for Automated Speed Enforcement Pilot Projects in Minnesota Work and School Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Studies have shown that automated speed enforcement (ASE), when deployed in certain settings, increases roadway safety. Minnesota is one of the 36 states that do not use ASE. This is despite public op…MoreSpeed Management in Work Zones – The ASAP Project (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Speed management of traffic in work zones is important for the safety of both the road user and road worker. A work zone will introduce deviations from normal travel in a discrete road section and app…MoreEffectiveness of Countermeasures to Reduce Vehicle Speeds in Freeway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Slowing motorists within work zones on high-speed roadways continues to be a challenge for highway authorities in all jurisdictions. Many Work Area Traffic Control Manuals (WATCM) limit the speed redu…MoreIDOT, Rep. Hoffman and State Police Share Success of Program to Reduce Work Zone Speeds; Save Lives in Illinois (Publication)
Resource Type: Other News Releases
The Illinois Department of Transportation worked with Representative Hoffman last year to use speed indicator boards on 13 metro east and southern Illinois interstate construction projects to display …MoreCreating Smarter Work Zones (Publication)
Resource Type: Articles
Roadway work zones are necessary to maintain the transportation network for mobility, safety, and productivity. Various technological tools are available to help transportation professionals effective…MoreNY State Police to Clamp Down in Road Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
The New York State police holds the "Operation Work Brake" campaign again. State troopers will crack down on speeding motorists and aggressive driving in and around construction zones along the New Yo…MoreMoDOT Won’t Deploy Noisy Work-Zone Warning Device After All (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Missouri Department of Transportation (MoDOT) has canceled its plan to roll out the acoustic devices, which will send an alarm in a high volume to drivers approaching work zones to warn them to sl…MoreMoDOT Will Use ‘Sound Cannons’ to Deter Work Zone Speeding (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Missouri Department of Transportation has been testing acoustic devices that can warn motorists to slow down in work zones. The devices will broadcast messages in a very high volume as a driver …MorePortable, Non-Intrusive Advance Warning Devices for Work Zones With or Without Flag Operators (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The main objective of this study was to develop a work zone alert system informing speeding drivers of the upcoming work zone and raising their attention level before they reach the taper line and/or …MorePreliminary Evaluation of Dynamic Speed Displays with Conditional Messaging (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Changeable message signs (CMSs) and dynamic speed displays (DSDs) for speed management applications have been deployed to address multiple situations. These have often been reported to produce benefic…MoreEstimating the Effect of Speed Control Strategies on Speed Distribution in Work Zones with Quantile Regression (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Speeding has long been a safety concern for transportation and law enforcement agencies, and speed control strategies also have received great attention; however, a review of the literature revealed s…MoreEffectiveness of Pilot Car Operations in Reducing Speeds in Long-Term Rural Highway Work Zone (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Pilot cars are used in one-lane two-way work zones to guide traffic and keep their speeds within posted limits. While many studies have examined the effectiveness of measures to reduce vehicle speeds …MoreDevelopment of Optimal Variable Speed Limit Control System for Freeway Work Zone Operations (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Operational safety and efficiency of VSL system are the two core control objectives at work zone areas. In response to such need, this study presents a proactive VSL control model for freeway work zon…MoreVariable Speed Limit Control on Highway Work Zone Considering Large Vehicle Mix Rates (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Due to the difference of vehicle type and power performance between large vehicles and cars, large vehicle mix rate will have an important impact on traffic flow of work zone and lead to the decrease …MoreFlagger Effects in Reducing the Likelihood of Rear-End Collisions for In-Platoon Vehicles in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Rear-end collisions are among the most dominant crash types in work zones. Three factors may increase the potential of rear-end collisions in work zones: following too closely, speeding, and faster tr…MoreTraffic Law Enforcement in Work Zones: Phase II Research (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
NCHRP Project 3-80 was initiated to develop guidance on the effective use of traffic enforcement strategies in highway work zones. Traffic enforcement is viewed by many as one of the most effective me…MoreImplementing Speed Reductions at Specific Interstate Workzones from 65 MPH to 35 MPH (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Interstate preservation projects are commonly conducted at night and often require working in close proximity to ongoing traffic. Vehicle speed and speed variability in work zones is inextricably conn…MoreAutomated Speed Enforcement in Work Zones (Training)
The purpose of this podcast is to help practitioners familiarize themselves with the types of automated speed enforcement currently used in work zones and to discuss considerations for those practiti… More
Automated Speed Enforcement in Work Zones
Podcast:
Play (To download, right-click on the link and choose Save Target as ... to save to your local drive.)
Script
PDF Version
Hello and welcome to the American Traffic Safety Services… More
Guidance for the Use of Portable Changeable Message Signs in Work Zones
September 2013
PDF Version [1.1 MB]
Table of Contents
Introduction
Objectives of the Document
General Guidance
Design Factors
Message Guidelines
Placement
Cost
… More
Automated Speed Enforcement in Work Zones (Publication)
Resource Type: Manuals, Policies, Guidelines, and Handbooks, etc.
Not available.MoreImpact of Monetary Penalty Driver Feedback on Work Zone Speed (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Nationally, one work zone fatality occurs every 10 hours (about 2.3 a day) and one injury every 13 minutes (110 a day). Speed limit compliance in and around work zones is of concern to transportation …MoreDetermining Optimal Deployment Location of Portable Changeable Message Sign in the Upstream of Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
A portable changeable message sign (PCMS) has been utilized in the upstream of work zones for many years. However, the Manual on Uniform Traffic Control Devices (MUTCD) does not specify the optimal de…MoreFlagger Effects in Reducing Likelihood of Rear-End Collisions in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Rear-end collisions are among the most dominant crash types in work zones. This study explores the effectiveness of flaggers in reducing the frequency of very short headways and the likelihood of rear…MoreResearch Pays Off: Automated Speed Enforcement Slows Down Drivers in Work Zones (Publication)
Resource Type: Articles
In 2004 the Illinois Department of Transportation (DOT) deployed two self-contained vans to implement a speed-radar photo enforcement (SPE) program in work zones with the intention of reducing fatalit…MoreThe Purpose of Speed Cameras (Publication)
Resource Type: Articles, News and Other Non-research Articles
It is no secret that unmanned speed cameras have provoked some very strong opinions. One state senator has promised to introduce legislation allowing their use only when there is at least one worker p…MoreCameras in Work Zones Nab More Than 750,000 Drivers (Publication)
Resource Type: Articles, News and Other Non-research Articles
Speed cameras in Maryland's highway work zones have issued more than 750,000 tickets and generated more than $30 million in revenue over the last two years. Studies show there is a 50 percent reducti…MoreMd.’s Mobile Speed Cameras Raking in Millions from Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
Totaling over 30 million in fines and over 750,000 tickets issued, Maryland officials now has the numbers to prove how serious they are about punishing work zone speed violators. Work zone incidents …MoreThe Effect of In-Vehicle Warning Systems on Speed Compliance in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The purpose of this research was to evaluate the effectiveness of augmented in-vehicle speed warnings on driver behavior in work zones. The influence of three device configurations were examined as th…MoreMissouri Officials Say They Will Look at Uplands Park Speed Camera (Publication)
Resource Type: Articles, News and Other Non-research Articles
Missouri transportation officials are looking into the use of a mobile speed camera in Uplands Park along Natural Bridge Road where camera use is restricted. Town officials made the argument that the …MoreHighway Work Zone Speed Enforcement (Publication)
Resource Type: Articles, News and Other Non-research Articles
Governor Deval Patrick joined the Massachusetts State Police, MassDOT, and state and federal officials today to kick off the work zone speed enforcement program, a one-year pilot program targeting at …MoreOfficials Vow Crackdown on Speeding Drivers in Highway Construction Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
In response to a wave of crashes that had killed and injured both workers and troopers, Governor Deval Patrick and top state and federal transportation officials will join State Police for a press con…MoreMounties Crack Down on Speeding: Drivers Still Going Too Fast in Construction Zones, Say Police (Publication)
Resource Type: Articles, News and Other Non-research Articles
The provincial government doubled the fines for speeding in construction zones in 2007, but police say motorists in New Brunswick are still driving too fast. In a little over three hours police issue…MoreGuidance on Managing Speeds in Work Zones (Training)
This webinar was held on November 30, 2011
The determination of work zone speed limits is typically based on state laws, agency policies and engineering judgment. Many factors impact the decisi… More
Work Zone Speed Reduction Utilizing Dynamic Speed Signs (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
A simulator study was used in this research to determine speed compliance based upon dynamic speed design and presence. The scenarios designed for this research simulated driving through a highway wor…MoreCameras at Construction Zones, Traffic Lights Touted for Safety (Publication)
Resource Type: Articles, News and Other Non-research Articles
A Pennsylvania proposal for generating $2.7 billion a year for transportation recommends allowing traffic enforcement cameras at intersections and in construction zones across the state. Officials sa…MoreBeltway Speed Cameras to Start Issuing Fines (Publication)
Resource Type: Articles, News and Other Non-research Articles
Starting on Tuesday, motorists caught by speed cameras on the Capital Beltway will receive fines in the mail according to the Maryland State Highway Administration (SHA). The SHA uses speed cameras in…MoreEditorial: Troopers Have Their Eye Out — So Should Drivers (Publication)
Resource Type: Articles, News and Other Non-research Articles
The New York state police will be out in full force on highways this week to crack down on speeders as part of the annual “Operation Work Brake” campaign and the “Speed Week” campaign. “Oper…MoreThruway Authority & State Police Troop T Announce “Operation Work Brake” Enforcement Begins August 8 (Publication)
Resource Type: Other News Releases
“Operation Work Brake,” an annual five-day initiative to promote work zone safety and awareness, will take place from August 8 through August 12, 2011. Officials say state troopers will be out in …MoreCapital Beltway Gets First Speed Cameras (Publication)
Resource Type: Articles, News and Other Non-research Articles
The first speed camera got to work on Monday in the Northwest Branch Bridge work zone on the Capital Beltway. Speeders caught by the camera through August 21st will receive a warning, after that any v…MoreUnmarked Police Truck to Patrol (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Indiana State Police unveiled a new white pickup that appears to be an Indiana Department of Transportation vehicle on the outside, but on the inside is a uniformed officer with lights, sirens, ra…More13 Investigates: Ticket-Writing in Highway Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
Indiana State Police have started a new effort to crack down on construction zone speeders. 13 Investigates looked through traffic data and identified areas where troopers have issued the most ticket…MoreODOT Cracks Down on Construction Zones After Worker Accidents (Publication)
Resource Type: Articles, News and Other Non-research Articles
Three workers were struck and seriously injured by a driver under the influence on the roadside during a night project. In response to this incident, the Ohio Department of Transportation will be redu…MoreOperation Yellow Jacket Stings Speeders (Publication)
Resource Type: Articles, News and Other Non-research Articles
More than 100 motorists on Friday felt the sting of Operation Yellow Jacket on Interstate 79. The Pennsylvania Department of Transportation and state police partnered for the undercover operation to c…MoreEffectiveness of Automated Speed Enforcement in Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
The performance of automated speed-radar photo enforcement (SPE) implemented in work zones in Illinois has been evaluated. The objective of SPE is to improve the speed limit compliance and improve saf…MoreSpeed Cameras in Howard County? Not So Fast, Say Opponents (Publication)
Resource Type: Articles, News and Other Non-research Articles
At a public hearing about the legislation that would allow the use of mobile speed cameras in Howard County school and work zones, 40 people were in favor of the legislation and 17, against it. Those…More“Mobile Speed Van” to Debut in the Springs (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Colorado Springs Police Department will start using a mobile speed van on April 5 to detect speeders in residential areas, construction zones, near parks, and school zones. From April 5 through M…MoreTraffic Management & Work Zone Safety Power Workshop at International Bridge Conference
This event, sponsored by ARTBA’s National Work Zone Safety Information Clearinghouse, was held in conjunction with the International Bridge Conference. The workshop was packed with timely inf… More
Determining the Effectiveness of PCMS on Reducing Vehicle Speed in Rural Highway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Due to the rising needs in highway maintenance and construction, the number of work zones is increasing throughout the United States. Highway work zones disrupt normal traffic flow and create safety p…MoreHeadway and Safety Analysis of Speed Law Enforcement Techniques in Highway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This paper investigated the headway distribution of platooning vehicles, presence of very short headways (MoreGuidelines on Use of Law Enforcement in Work Zones (Publication)
Resource Type: Manuals, Policies, Guidelines, and Handbooks, etc.
Guidelines on Use of Uniformed Law Enforcement (Subpart K) describes good practices for use of law enforcement to improve work zone safety and mobility. The document is intended to assist highway agen…MoreRoadway Safety Plus Advanced Course (Training)
The modules below are covered. Each course in the Roadway Safety Plus series opens with the Introduction module. The module lists the Roadway Safety Consortium members, credits FHWA and OSHA, clarifie… More
SHA and State Police Add MD Safezones Location to Increase Work Zone Safety (Publication)
Resource Type: Other News Releases
Maryland SafeZones Program is taking an active role in monitoring speeds through work zones. With the joint efforts of the Maryland State Highway Administration and Maryland State Police, the program …MoreGuidelines on Managing Speeds in Work Zones (Publication)
Resource Type: Manuals, Policies, Guidelines, and Handbooks, etc.
Guidelines on Managing Speeds in Work Zones summarizes available guidance on setting speed limits and managing speeds in work zones. Many factors impact the decision to reduce the regulatory speed lim…MoreSpeed Cameras and Resentment Linger (Publication)
Resource Type: Articles, News and Other Non-research Articles
Cameras in work zones on D.C. 295 have generated around 15,000 speeding tickets. Drivers who frequent the road are convinced the cameras need to be removed since construction has dwindled since Octobe…MorePhoto Radar Proposed for School, Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
MPP David Caplan proposed to reintroduce photo radar cameras in schools and construction sites. If the bill is passed, municipalities throughout the province will be given the authority to place camer…MoreSafety Cameras Should be Used on Construction Sites: MPP (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Highways Traffic Amendment Act of Ontario is intoduced to allow the use of traffic safety cameras in highway work zones and near schools. The cameras are to be installed if approved by local muni…MoreSpeed-enforcement Vans Detoured Off Illinois Tollway: State Police Reroute Photo Enforcement Vehicles to Expressways (Publication)
Resource Type: Articles, News and Other Non-research Articles
Illinois State Police are discontinuing the use of photo enforcement vans on Illinois Tollway construction zones. The vans have been utilized by the Illinois Department of Transportation for four year…MoreConsortium Issues Guidance for Safer Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Roadway Safety Consortium issued guidelines under its Federal Highway Administration (FHWA) grant for state Department of Transportation (DOT) personnel, highway designers, construction supervisor…MorePolice Step up Speeding Patrols in B.C. Construction Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
The government of British Columbia (B.C.) has decided to regulate traffic in construction zones much more strictly. Starting from October 14, motorists can expect to see more speed reader boards in co…MoreMore Mobile Speed Cameras Going Up (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Maryland State Highway Administration will begin employing mobile cameras at various work zones in Prince George's, Frederick, and Baltimore counties. Any driver caught going more than 12 MPH over…MoreIllinois DOT to Use Sensors to Catch Work-Zone Speed Violators (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Illinois Department of Transportation has been experimenting with various types of work-zone speed limit enforcement techniques. For the past few years, mobile vans have been employed to capture …MoreAssessing Automated Speed Enforcement in California (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Speeding is known to be related to a significant portion of highway collisions. As part of the efforts to seek safety improvements of the California highway network, the California Department of Trans…MoreReducing Traffic Speed Within Roadwork Sites Using Obtrusive Perceptual Countermeasures (Publication)
Resource Type: Articles, Books, Reports, Papers, and Research Articles
Excessive speed is currently one of the primary contributory factors in traffic accidents within roadwork sites around the world. The present study evaluated two novel interventions designed to contro…MoreAnalyzing Motorists’ Responses to Temporary Signage in Highway Work Zones (Publication)
Resource Type: Articles
For decades, the importance of highway work zone safety has increased considerably with the continual increase in the number of highway work zones present on highways for repairs and expansion. Rural …MoreSee How New Cameras Catch Speeders: Highway Patrol Considers Wider Use (Publication)
Resource Type: Articles, News and Other Non-research Articles
In Cedar Rapids, Iowa, there has been a large increase in the number of tickets being issued to drivers for speeding and running red lights. Drivers are being ticketed more frequently because cameras…MoreMove Over Law Adds 2 Changes (Publication)
Resource Type: Articles, News and Other Non-research Articles
Beginning July 1, 2010, Indiana employed their first Move Over law that penalizes motorists for travelling in lanes next to emergency response vehicles or police cruisers when they are capable of movi…MoreState Awards Speed Camera Contract: Pact With ACS Will Allow Expansion of Work Zone Enforcement (Publication)
Resource Type: Articles, News and Other Non-research Articles
Maryland State Highway Administration, Maryland State Police, and the Maryland Transportation Authority Police plan to jointly award a contract of up to $20.9 million to ACS to expand the work zone sp…MoreOn the Road: Construction Zones Now Covered by Highway Traffic Act (Publication)
Resource Type: Articles, News and Other Non-research Articles
To ensure the safety of both workers and the drivers through construction zones, the Ministry of Transportation in Canada amended the Highway Traffic Act to include the speeding law in construction zo…MoreMinister MacKinley Reminds Islanders to Slow Down in Construction Zones (Publication)
Resource Type: Other News Releases
Major road construction projects are to take place across Prince Edward Island in the next few weeks. The Department of Transportation and Infrastructure Renewal reminds Islanders to slow down and use…MoreBroken Arrow Police Conduct ‘Ghost Operations’ in Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
Some law enforcement agencies participated in the National Work Zone Awareness Week along with the Oklahoma Department of Transportation to crack down on speeders in work zones. Broken Arrow Police …MorePhoto Radar Speed Enforcement in a State Highway Work Zone: Yeon Avenue Demonstration Project (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The 2007 Oregon legislative assembly passed House Bill 2466, allowing the Oregon Department of Transportation to use photo radar in ODOT work zones on non-interstate state highways and required ODOT t…MoreWork Zone Cameras a Success, SHA Chief Says (Publication)
Resource Type: Articles, News and Other Non-research Articles
State Highway Administrator Neil J. Pedersen accounted that a speed-control program involving cameras effectively reduced speed in work zones in Maryland.MoreDid Safety Experiment Work? (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Virginia Department of Transportation experimented with the Variable Speed Limit program this Spring. This program was aimed at slowing down the traffic and improving safety in work zones. The r…MoreNYCLU: Privacy Protections Needed in Paterson’s Speed-Enforcement Legislation (Publication)
Resource Type: Articles, News and Other Non-research Articles
The New York Civil Liberties Union (NYCLU)’s Capital Region chapter is raising concerns about Gov. David A. Paterson's proposal to generate $32.9 million in revenues in 2010-2011 by setting up 40 s…MoreWhitead Proposes Work-Zone Traffic Cameras (Publication)
Resource Type: Articles, News and Other Non-research Articles
An Iowa House subcommittee began work on a bill proposed by Rep. Wesley Whitead, D-Sioux City. House File 2053 would require state public safety and transportation officials to install photo traffic …MoreLegislator Proposes Cameras in Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
An Iowa legislator is proposing traffic cameras be placed in work zones on interstate and primary highways in the state to slow traffic. A speaker from the Department of Public Safety says the agency…MoreSpeedcheck Radar Speed Signs Increase Work Zone Safety for Medford’s Department of Public Works: Speed Displays Prove Highly Effective at Slowing Traffic During Road Projects that Put Workers and Drivers at Risk (Publication)
Resource Type: Articles, News and Other Non-research Articles
After a successful experiment with a speedcheck radar speed sign on a street repair project to slow down drivers and increase worker safety, the city of Medford, Oregon, now regularly uses speedcheck …MoreMoDOT Hopes Barrel Bob Slows Down Drivers Through Construction Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
In an effort to improve the safety of both workers and motorists, Missouri Department of Transportation places Barrel Bob, a 10-foot-tall man made of orange construction barrels, close to a work zone …MoreSynthesis of Practices for Work Zone Speed Management (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Speeding in work zones is one of the most common traffic violations observed by road builders and road maintenance crews. It creates an unsafe environment for road workers and all types of road users.…MoreEvaluation of Temporary Removable Rumble Strips for Speed Reduction (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Removable rumble strips were installed at construction work zones along State Route 31 in Charlotte County, Florida to help reduce travel speeds of vehicles entering work zones. Speed studies were con…MoreEvaluation of Innovative Safety Treatments, Volume 2: A Study of the Effectiveness of Temporary Rumble Strips in Construction Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The Florida Department of Transportation (FDOT) District 1 office utilized temporary rumble strips on the approach to work zone areas on State Road 31 to alert motorists of lane closures associated wi…MoreHigh Speeds Put Metro Detroit Road Workers in Danger (Publication)
Resource Type: Articles, News and Other Non-research Articles
Thousands of Metro Detroit motorists driving through construction zones are reaching speeds on average of more than 20 mph above posted limits, endangering workers and themselves. Several countermeas…MoreNH Sees 25 Percent Drop in Highway Fatalities (Publication)
Resource Type: Articles, News and Other Non-research Articles
Traffic deaths have been on the decline in New Hampshire. The reasons are multifold. More patrols and advanced warning for work zones could all be contributing factors.MoreSpeeders Get a Second Chance (Publication)
Resource Type: Articles, News and Other Non-research Articles
In response to public complaints over speed cameras, the Maryland State Highway Administration has decided to postpone the $40 fine for motorists driving too fast in work zones for another two weeks.MoreEvaluating Effectiveness of Dynamic Speed Display Signs in Transition Zones of Two-Lane Rural Highways in Pennsylvania (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Although law enforcement is an effective method to manage speeds, it requires significant resources to ensure adequate spatial and temporal compliance. In some cases, alternative speed management meth…MoreEvaluation of Speed Monitoring Displays for Work Zones in Las Vegas, Nevada (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Speed monitoring displays (i.e., speed trailers) have been evaluated in many states for reducing vehicular speeds in work zones. This study evaluated the enhancements to speed trailers regarding messa…MoreDownstream Effects of Speed Photo–Radar Enforcement and Other Speed Reduction Treatments on Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The effects of automated speed photo–radar enforcement (SPE) and traditional speed reduction treatments (speed feedback trailer, presence of police vehicles with emergency lights on and off, and com…MoreEffectiveness of Speed Control Measures on Nighttime Construction and Maintenance Projects: Some New Evidence (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Nighttime work-zone safety has become a concern among state transportation agencies due to an increasing number of work-zone fatalities and the high percentage of roadwork performed at night. Speed co…MoreCanada: Motorists Protest Illegal Work Zone Photo Radar (Publication)
Resource Type: Articles, News and Other Non-research Articles
Officials in Winnipeg, Canada were caught this weekend defying a court ruling that outlawed the use of photo radar in work zones when workers are not present. A group of residents organized by the gro…MoreSpeeding is Hard to End, Even with Hefty Fines (Publication)
Resource Type: Articles, News and Other Non-research Articles
In the letter to Dr. Gridlock, Mona Grieser recommended to those putting up cameras on the streets that a grace period of at least two months be given. She thought it is important to understand how hu…MoreVariable Speed Limits Signs: Effects on Speed and Speed Variation in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Variable Speed Limit (VSL) signs are used across the country in conjunction with Intelligent Transportation Systems to lower posted speed limits in areas affected by conditions such as congestion, con…MoreReducing Work Zone Crashes by Using Emergency Flasher Traffic Control Device (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Rural two-lane highways compose a large percent of the highway system nationwide. Preserving, expending, and enhancing these highways result in many one-lane, two-way work zones that have caused a saf…MoreField Evaluation of Work-Zone Automated Speed Enforcement Equipment and Traffic Monitoring Devices (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Speeding is a significant contributor to a significant portion of highway collisions. For work zones in particular, the speeding problem is compounded by on-site road re-configuration, narrowed lanes,…MoreComparison of Automated Speed Enforcement and Police Presence on Speeding in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This paper compares the effects of four speed management techniques on speed and speeding on interstate highway work zones. The techniques are speed feedback trailer, police car, the speed feedback tr…MoreCol. Terrence B. Sheridan: Speed Cameras Help Save Lives (Publication)
Resource Type: Articles, News and Other Non-research Articles
To enforce work zone speed limits has been a challenge for law enforcement due to the constricted space of work zones. Maryland's new automated speed enforcement provides a way to enforce the speed l…MoreEvaluation of a Motorist Awareness System (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The objective of this study was to determine the effects of a Motorist Awareness System (MAS) on vehicle speeds in highway work zones. Spot speed studies were conducted prior to, within, and near the …MoreSpeed Camera Report: Drivers Slowed Down (Publication)
Resource Type: Articles, News and Other Non-research Articles
As state and local officials in Maryland began deploying enforcement cameras in work zones and near schools to deter speeding, a report from Montgomery County on their pioneering automated speed enfo…MoreTransportation Secretary Swaim-Staley Demonstrates How Automated Speed Encorcement Works: New Law Strives to Make Work Zones Safer for Workers, Drivers and Passengers (Publication)
Resource Type: Other News Releases
The law that allows automated speed enforcement was passed during the 2009 legislative session and becomes effective on October 1. Transportation Secretary Beverley K. Swaim-Staley was joined by legis…MoreSpeeding in Work Zones Will Cost You: Maryland Launches Work Zone Speed Camera Program (Publication)
Resource Type: Articles, News and Other Non-research Articles
Maryland has launched a new speed camera enforcement program aimed at reducing the number of traffic accidents in and around work zones. Laurie Moser, the widow of a highway worker killed in Frederick…MoreTraffic Management & Work Zone Safety Power Workshop at World of Asphalt 2010 Show & Conference
The National Work Zone Safety Information Clearinghouse offered FREE educational sessions in 2010 during World of Asphalt. Those "power workshops" focused on key work zone safety challenges that … More
Speed Photo–Radar Enforcement and Its Effects on Speed in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Automated speed photo–radar enforcement (SPE) in work zones was implemented for the first time in the United States in Illinois. This paper presents the results of the effectiveness of SPE on the ba…MoreWork Zone Speed Control (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Traffic in the lanes next to work zones presents a continuous hazard to workers. By reducing the speed of the traffic through the work zone, the hazard can be mitigated somewhat. Accurate data on the …MoreStates Crack Down on Speeding in Construction Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
To reduce fatalities and improve work zone safety, states have used various traffic control methods. Illinois uses cameras to catch speeders and its work zone speeding fines were toughened up: first-…MoreWork Zone Speed Limits Enforced With Cameras (Publication)
Resource Type: Articles, News and Other Non-research Articles
A recently circulated e-mail warns Illinois drivers they will receive a $375 ticket in the mail if photo radar catches them speeding even 1 mile per hour over the limit in a work zone, starting July 1…MoreNearly 3,000 Ticketed for Speeding in I-80 Work Zone (Publication)
Resource Type: Articles, News and Other Non-research Articles
Nearly 3,000 tickets were issued in Salt Lake City's Interstate 80 construction zone from late March 2008 thru early this month since the Utah Department of Transportation paid $8,000 to $10,000 a mon…MoreTennessee Authorizes Statewide Freeway Speed Camera Program: Members of the Tennessee General Assembly Misled into Voting to Authorize State-Run Freeway Work Zone Speed Camera Program (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Tennessee General Assembly gave final approval to legalize speed cameras in freeway work zones. Although many members in the House and Senate expressed strong opposition to the concept of photo en…MoreSpeed Cameras on U.S. Highways? (Publication)
Resource Type: Articles, News and Other Non-research Articles
While freeway speed camera is common in Europe, Maryland and Arizona are the only two states in U.S. that have signed it into law. Opponents and backers of speed cameras both suggest that eventually …More‘Potomac Secret Agent’ Fights Speed Cameras (Publication)
Resource Type: Articles, News and Other Non-research Articles
"Speed Camera Ahead!" signs made by a mystery resident known as the "Potomac Secret Agent" are placed near speed camera locations along roads in Potomac, Maryland, to warn drivers of speed cameras. "…MoreWSDOT Turns Orange for Work Zone Memorial Today (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Washington State Department of Transportation has turned their web site orange this week in abservance of 2009 Work Zone Memorial to honor workers killed in roadway work zones. The agency's "Give …MoreCameras Coming to Catch Work-Zone Speeders (Publication)
Resource Type: Articles, News and Other Non-research Articles
In an effort to reduce fatalities in work zones, the Washington Department of Transportation (WSDOT) mounts automatic cameras to catch violators in work zones this spring. Links to WSDOT sites on auto…MorePennDOT Promotes Safety Within Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Pennsylvania Department of Transportation publicly highlighted the importance of work zone safety awareness with a radar demonstration along Interstate 80 in corroboration with National Work Zone …MoreMore than 500 Work Zone Violations Issued During Operation Drive Smart (Publication)
Resource Type: Articles, News and Other Non-research Articles
540 citations were issued for speed violations in work zones across the state of North Carolina during Operation Drive Smart 2009, the state's work zone safety enforcement campaign. The campaign, whi…MoreNew Law Could Put Speed Cameras In Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
The 10th National Work Zone Awareness Week begins in Maryland and lawmakers contemplate ways to deter drivers from speeding in work zones. One of the safety measure on debate would be to put speed cam…More2009 National Traffic Management & Work Zone Safety Conference
The acclaimed Traffic Management & Work Zone Safety Conference managed by the ARTBA - Transportation Development Foundation was held March 9-13 in Orlando, Florida, in conjunction with World o… More
Improving Regulatory Speed Limit Management in Texas Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This project summary report summarizes the research performed in Texas Department of Transportation (TxDOT) Project 0-5561. TxDOT's procedure for determining whether a reduced regulatory speed limit i…MoreSynthesis of Traffic Calming Techniques in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Nationwide, over 1,000 fatalities and 40,000 injuries occur annually in work zones, which include both construction zones and areas where maintenance is performed. The majority (85%) of work zone acci…MoreCameras Would Catch Red-Light Violators (Publication)
Resource Type: Articles, News and Other Non-research Articles
Governor Jim Doyle of Wisconsin proposed to allow state and local law enforcement agencies to install cameras at intersections and in highway construction zones to catch the violators. Rep. Marlin Sch…MoreLawmakers Want to Put Speed Cameras in Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
Lawmakers in Maryland consider a bill on speed cameras as a potential solution to contruction site accidents. Revenues and safety would both increase greatly with such automated systems, giving great …MoreCameras May Nab Speeders in Construction Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
As a step to improve highway work zone safety, the Ohio Department of Public Safety proposed the use of speed cameras in construction zones. Officials hope to get approval for the devices by this summ…MoreStudies to Improve the Management of Regulatory Speed Limits in Texas Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This report describes the methodology and results of analyses performed to (1) improve existing procedures on establishing and managing work zone speed limits, and (2) evaluate new technologies and st…MoreReducing Work Zone Crashes by Using Vehicle’s Warning Flashes as a Warning Sign (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Rural two-lane highways constitute a large percentage of the highway system in Kansas. Preserving, expending, and enhancing these highways require the set-up of a large number of one-lane, two-way wor…MoreEvaluation of Best Practices in Traffic Operation and Safety: Phase I: Flashing LED Stop Sign and Optical Speed Bars (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
In a previous extensive review of overseas literature, researchers identified 42 traffic operations and safety technologies and practices that were not currently deployed in Virginia. These were evalu…MoreFHWA Roadway Work Zone Training Consortium – Summer 2008 Newsletter, Volume III
PDF Version
Inside
10,000 and Growing
Managing Speeds in Work Zones: The Need For Guidance
ANSI A10.47 Work Zone Safety for Highway Construction Standard
Special Sneak Preview: MUTCD TA… More
State Police’s Video Surveillance Cutting Down on Traffic Deaths (Publication)
Resource Type: Articles, News and Other Non-research Articles
The presence of photo-enhancement vans dispersed by Illinois State Police, which have been promoted with highway signs, ad campaigns and accompanied by increased enforcement, is paying off. The numbe…MoreNew Tougher Laws Designed to Make Roads Safer (Publication)
Resource Type: Articles, News and Other Non-research Articles
Jeff Heath, the Illinois Department of Transportation construction worker from downstate Jersey County, was directing traffic nearly two years ago when he was struck and killed by a speeding pickup tr…MoreGuidelines for Use of Florida Highway Patrol in Work Zone Speed Control (Publication)
Resource Type: Manuals, Policies, Guidelines, and Handbooks, etc.
The purpose of this guideline is to provide the user with information, which will aid in determining the need for and mathod(s) of use of Florida Highway Patrol Officers for speed control through work…MoreUse of Police Traffic Services in Work Zones (Publication)
Resource Type: Manuals, Policies, Guidelines, and Handbooks, etc.
The use of police traffic services in construction and maintenance work zones has proven to be effective in enhancing the safety of road workers and motorists. The primary reasons to utilize police se…MoreGotcha! Construction-Zone Speed Cameras Get Support (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Maryland House of Representatives voted 90-45 on Thursday, March 20, 2008, to allow automatic speed-monitoring cameras in highway work zones statewide and in local jurisdictions that approve their…MoreUse of Police in Work Zones on Highways in Virginia: Final Report (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Previous studies have indicated that the use of a staffed police car positioned at the front of work zones is one of the most effective methods of controlling speed in work zones. The purpose of this …MoreWork zone speed limit (Practice)
In North Carolina: Speed reduction is used for long-term application (i.e., posted regulatory speed limit signs) for work zones where geometry and/or lane width/shoulder width restrictions occur on fr… More
Florida:Highway Patrol’s (FHP) Operation Hardhat Program (Practice)
Dubbed "Operation Hardhat" by the Florida Highway Patrol (FHP), troopers dressed as construction workers operate laser or radar speed-measuring devices to detect speeders. Violators are then called ou… More
Pace vehicles or speed control vehicles to limit driver speeds through construction work zones (Practice)
The California DOT (Caltrans) does not use pace vehicles or speed control vehicles to limit driver speeds through construction work zones. However, Caltrans does use California Highway Patrol (CHP) P… More
Maine:Pace vehicles or speed control vehicles to limit driver speeds through construction work zones (Practice)
The Maine Turnpike Authority will be using 2 Pace Vehicles, side-by-side at a 50 mph construction zone speed. Vehicles provided and driven by contractor, equipped with top-mounted yellow beacons and a… More
State police to limit driver speeds through construction work zones (Practice)
NYSDOT uses state troopers in work zones to improve motorist compliance with work zone speed limits. Regular-shift trooper coverage meets routine needs while project-specific coverage is dedicated to … More
Pace vehicles or speed control vehicles to limit driver speeds through construction work zones (Practice)
The only projects on which Michigan used pace/pilot vehicles have been preventative maintenance/chip seal and crush and shape projects, and only on two-lane two-way roadways. These projects are nece… More
South Carolina:Pace vehicles or speed control vehicles to limit driver speeds through construction work zones (Practice)
Highway troopers are used in South Carolina. One vehicle in center of roadway with flashing lights is generally sufficient. More
Pace vehicles or speed control vehicles to limit driver speeds through construction work zones (Practice)
Delaware uses all three groups as listed. Side-by-side plus shoulders. Road rage is minor due to short duration. Recommendation: Be sure vehicles are well marked with identification and warning lights… More
Automated speed enforcement in work zones (Practice)
Minnesota DOT has done a detailed study of automated speed enforcement in work zones using equipment from two vendors. More
Work zone speed enforcement and photo enforcement in work zones (Practice)
Comprehensive work zone speed enforcement operational plan developed by the South Dakota DOT, Associated General Contractors Association, and the Highway Patrol. The program utilizes local law enforc… More
Traffic management techniques (beyond the MUTCD) used to reduce accidents in work zones (Practice)
Minnesota uses off-duty state patrol officers to reduce vehicle speeds in work zones by parking at the start or throughout the construction area. Lower speeds lead to fewer crashes. Also, the presen… More
Speeding in Work Zones Becomes Costlier with Passage of New State Law (Publication)
Resource Type: Other News Releases
TxDOT Press Release discussing double fines that will occur if a motorist is caught speeding or ignoring warning signs in construction zones. "Motorists who blatantly disregard construction laws will …MoreEffectiveness of Changeable Message Signs in Controlling Vehicle Speeds in Work Zones – Phase II (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This report is the second phase of a longitudinal research study. The first phase of the project, conducted by Garber and Patel, examined the short term effectiveness of CMS in reducing vehicle speed…MoreEffective Speed Reduction in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This report covers the results from three focus groups convened to discuss general impressions of work zones, methods of communicating information about work zones to the public, and the structure and…MoreEffectiveness of Changeable Message Signs in Controlling Vehicles Speeds in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This study evaluates the effectiveness of the CMS with radar unit in reducing work zone speeds. Four CMS messages designed to warn drivers that their speed exceeded the maximum safe speed were tested…MoreControlling Vehicle Speeds in Highway Construction Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The objective of this project was to evaluate the effectiveness of alternative treatments for controlling vehicle speeds in work zones. Field studies were conducted at three rural, high-speed location…MoreEffect of Radar Drone Operation and Speeds at High Crash Risk Locations (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
At highway construction and maintenance work zones and other locations where roadway alignment, road surface, and traffic flow conditions have contributed to high crash rates, crash risk may be reduce…MoreEffect of Radar Transmissions on Traffic Operations at Highway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
A series of field studies was conducted at highway work zones where low-output radar transmissions were emitted (by motion detection devices) without the presence of visible law enforcement. Data wer…MoreImproving Work Zone Safety with Radar (Publication)
Resource Type: Articles, News and Other Non-research Articles
This article discusses three successful approaches to reduce speeds in work zones. The first is South Dakota's DOT/COP program which uses two laser/video speed detection systems that capture the speed…MoreEffects of Police Presence on Speed in a Highway Work Zone: Circulating Marked Police Car Experiment (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This study evaluated the effects of police presence on the speed of vehicles in a work zone and determined the 'halo' effects of police presence (lasting effects when police are gone) on vehicular spe…MoreSpeed Reduction Effects of Changeable Message Signs in a Construction Zone (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This study evaluated the vehicular speed reduction effects of displaying speed limit and information messages on a changeable message sign (CMS) placed inside the work activity area in a work zone for…MoreEvaluation and Summary of Studies in Speed Control Methods in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This report summarizes and evaluates the important findings from the literature review of the studies on work zone speed control techniques. The following treatments are included in this report: 1) fl…MoreSpeed Reduction Profiles of Vehicles in a Highway Construction Zone (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
In response to roadway geometry and traffic control devices, motorists may change their speeds within a work zone. Speed profile data were collected for 208 vehicles who traveled a 1.5-mile long sect…MoreEvaluation of a Radar Activated Horn System for Speed Control in Highway Maintenance Operations (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This study evaluated the speed reduction effects of providing an audible message to the speeding motorists approaching a highway striping crew. The audible system consisted of a radar unit which activ…MoreSpeed Reduction Methods and Studies in Work Zones: A Summary of Findings (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The objectives of this project were to determine the effectiveness of speed control methods and study traffic behavior in construction zones. This report provides a brief introduction and a summary of…MoreSpeed Reduction Effects of Drone Radar in Rural Interstate Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Three experiments were conducted to evaluate the effectiveness of using drone (passive or unmanned) radar guns on vehicle speeds in construction zones. Experiment 1 was an exploratory study to find t…MoreSynthesis of Safety Research Related to Speed and Speed Limit (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This document provides a review of safety research related to speed and speed management. This review builds upon a similar synthesis prepared in 1982. This synthesis highlights the relationships amon…MoreI-95 Deaths Prompt Changes: After Two Grisly Wrecks, the State Steps up Patrols, Adds Signs and Raises Fines (Publication)
Resource Type: Articles, News and Other Non-research Articles
An 8-mile work zone along Interstate 95 where four people died in one week this month has seen more than 40 accidents since October. The article discusses safety measures being taken to slow traffic t…MoreInfluence of Exposure Duration on the Effectiveness of Changeable-Message Signs in Controlling Vehicle Speeds at Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
In work zones, drivers do not slow down in response to conventional signs. Changeable-message signs (CMSs) equipped with a radar unit can be used to display specific warning messages to speeding drive…MoreUse of Speed Monitoring and Communications Display for Traffic Control (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The objective of this research was to: 1) identify or develop a speed monitoring display suitable for use in interstate highway work zones, and 2) evaluate the display's effectiveness in reducing spee…MoreControl of Vehicle Speeds in Temporary Traffic Control Zones (work zones) Using Changeable Message Signs with Radar (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Studies have shown that most drivers do not slow down in response to the standard regulatory or advisory speed signs that are customarily used to regulate speeds at temporary traffic control zones (wo…MoreApplication of Optical Speed Bars to Highway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The proximity of workers and traffic makes safety a high priority in highway work zones. The occurrence and severity of accidents is related to vehicle speeds and speed variations. The use of optica…MoreSpeed Control Through Work Zones: Techniques Evaluation and Implementation Guidelines (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This report presents the implementation and evaluation of four techniques for improving the effectiveness of speed zoning in construction areas on multilane freeways. The techniques are (a) the flaggi…MoreWork Zone Ahead: Reduce Speed (Publication)
Resource Type: Articles
Nationally, 30% of all work zone fatality accidents involve excessive speed. Speed Measurement Laboratories Inc. (SML) conducted an analysis of four different work zones in Nebraska, Kansas, New Mexic…MoreSpeed Bumps Can Control Work-Zone Speed (Publication)
Resource Type: Articles, News and Other Non-research Articles
Article discussing a controversial traffic control device- the speed bump. It is being used by the Bow, New Hampshire Department of Public Works as a work-zone safety device.MoreField Evaluation of Work Zone Speed Control Techniques (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The results of field studies conducted in Texas to evaluate selected methods of slowing work zone traffic to acceptable speeds are presented. The studies were performed at six work zone sites, includi…MoreGuide to Establishing Speed Limits in Highway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The purpose of this document is to provide a uniform guideline for the proper application of speed limits in street and highway work zones. This booklet outlines the guidelines, proper layouts and pro…MoreSlowing Them down in Deadly Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
Article discussing ways to slow traffic down in work zones: doubling fines, radar trailers, and drone radar. Statistics are also given: 1) speeding is a contributing factor in 30% of all work zone acc…MoreEvaluation of Work Zone Speed Reduction Measures (Report) (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The Iowa Department of Transportation (DOT) has made improving work zone (WZ) safety a high priority. Managing vehicle speeds through work zones is perceived to be an important factor in achieving thi…MoreEvaluation of Speed Trailers at High-Speed Temporary Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This paper describes an evaluation of the use of a speed trailer in rural high-speed temporary work zones. Three conditions were evaluated; normal traffic control, a speed trailer and speed advisory s…MoreWork Zone Speeders Targeted: Police Patrols Increased in Construction Area to Help Reduce Road Injuries, Deaths (Publication)
Resource Type: Articles, News and Other Non-research Articles
Michigan will nearly double police patrols in road construction zones and crack down on last-second lane changers as the state seeks to cut down on the number of accidents and injuries. As part of thi…MoreSpeed Reduction Effects of Speed Monitoring Displays with Radar in Work Zones on Interstate Highways (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The speed monitoring display is a traffic control device that uses radar to measure the speeds of approaching vehicles and shows these speeds to traffic on a digital display panel. It is intended to s…MoreRelationship Between Initial Speed and Speed Inside a Highway Work Zone (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Drivers' speeds in the advance warning area may influence the speeds that they maintain throughout the work zone. The correlations between the speed at the end of the advance warning area and the spee…MoreSpeed Change Distribution of Vehicles in a Highway Work Zone (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
In response to roadway geometry and traffic control devices, motorists may change their speeds within a work zone. Speed profile data for 102 automobiles (cars and vans) and 49 trucks, which traveled …MoreTemporal Speed Reduction Effects of Drone Radar in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Three experiments were conducted to evaluate the effectiveness of using drone (passive or unmanned) radar guns on vehicle speeds in work zones. Experiment 1 was an exploratory study to determine the i…MoreLawmen Targeting Speeding on I-95 in Lumberton (Publication)
Resource Type: Articles, News and Other Non-research Articles
Robeson County lawmen plan to crack down on motorists who speed through an Interstate 95 construction zone in Lumberton. The state Highway Patrol, Lumberton police and the state Division of Motor Vehi…MoreSpeed-Reduction Patterns of Vehicles in a Highway Construction Zone (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Drivers may change their speeds at different locations within a work zone in response to roadway geometry and traffic control devices. Speeds of vehicles at different locations within a work zone were…MoreEvaluation of Flagger Training Session on Speed Control in Rural Interstate Construction Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
A study was conducted on the evaluation of a flagger training session on speed control in rural Interstate construction zones. Two flaggers were randomly selected to participate in a training session,…MoreSpeed Control Through Freeway Work Zones: Techniques Evaluation (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
In this paper, the implementation and evaluation of four techniques for improving the effectiveness of speed zoning in construction areas on multilane freeways are presented. The techniques are (a) th…MoreImplementation of Work-Zone Speed Control Measures (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Recommendations for implementing speed control at construction and maintenance work zones are presented. The following implementation steps are identified and discussed: (a) determining the need for s…MoreIt’s a Slow Process (Publication)
Resource Type: Articles
Article discussing research that the Texas Transportation Institute has been conducting about the use of speed trailers in reducing speed through some work zones.MoreEffect of the Work Zone Double-Fine Law in Texas (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This paper presents the results of research efforts to assess the effect of the work zone double-fine law in Texas. The research efforts included speed studies at selected work zones to evaluate the e…MoreLong-Term Effectiveness of Speed Monitoring Displays in Work Zones on Rural Interstate Highways (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The long-term effectiveness of Speed Monitoring Displays (SMDs) was evaluated as part of the Midwest States Smart Work Zone Deployment Initiative, a pooled-fund study sponsored by Iowa, Kansas, Missou…MoreEvaluation of Speed Displays and Rumble Strips at Rural Maintenance Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This paper describes an evaluation of the effectiveness of speed displays and portable rumble strips at reducing speeds in rural maintenance work zones. Speed displays are radaractivated signs that dy…MoreWork Zone Speed Control and Management by State Transportation Agencies and Toll Authorities (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This paper describes the results of a written questionnaire survey sent to state traffic engineers and their equivalents at toll authorities to determine their practices and policies regarding speed c…MoreEffect of Condition-Responsive, Reduced-Speed-Ahead Messages on Speeds in Advance of Work Zones on Rural Interstate Highways (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Condition-responsive, reduced-speed-ahead messages were evaluated as part of the Midwest States Smart Work Zone Deployment Initiative, a pooled-fund study sponsored by Iowa, Kansas, Missouri, Nebraska…MoreAm I Going that Fast? Research Shows Speed Trailers Improve Safety in Temporary Work Zones (Publication)
Resource Type: Articles
Paul Carlson, an assistant research engineer at the Texas Transportation Institute (TTI), has focused his attention on temporary work zones, the type that show up for one to twelve hours for minor mai…MoreUsing Speed Display Trailers to Slow Vehicles in Short-Term Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
A speed display trailer was evaluated by the Texas Transportation Institute on both two-lane and four-lane rural roads and proved to have a positive impact on speeds at both locations.MoreCatalog of Work Zone Speed Control Methods (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This report presents a catalog of available speed control methods for work zones. Information contained in the report comes from three sources: a literature review, a telephone survey of SDHPT Distric…MoreSpeed Limits Lowered in High-Speed Work Zones (Publication)
Resource Type: Other News Releases
AMES, IOWA - Lower speed limits for certain work zones on interstate and other multi-lane highways became effective today, June 1, 2001. The Iowa Department of Transportation announced the change, whi…MoreIllinois Takes Work Zone Safety to Heart – with Help of Workers’ Kids (Publication)
Resource Type: Articles, News and Other Non-research Articles
Illinois drivers are getting an important message these days from an authority they can trust - kids. Illinois Department of Transportation officials, watching death tolls rise in state work zones, de…MoreSpeeding in Work Zones Taking a Deadly Road Toll (Publication)
Resource Type: Articles, News and Other Non-research Articles
A record number of people are being killed in highway work zones as motorists speed through construction areas -- confused, frustrated or both by ever-increasing miles of narrow lanes and orange cones…MoreStudy Tests Devices to Improve Work Zone Safety (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Texas Department of Transportation (TxDOT) selected the Texas Transportation Institute (TTI) to investigate new traffic control devices that can improve worker and driver safety. This study attem…MoreEvaluation of Work Zone Speed Reduction Measures (Presentation) (Publication)
Resource Type: Presentations
The Iowa Department of Transportation (DOT) has made improving work zone (WZ) safety a high priority. Managing vehicle speeds through work zones is perceived to be an important factor in achieving thi…MoreEffect of Speed Monitoring Displays on Entry Ramp Speeds at Rural Freeway Interchanges (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The effectiveness of speed monitoring displays (SMDs) in controlling the speed of on-ramp traffic at rural freeway interchanges was evaluated as part of the Midwest States Smart Work Zone Deployment I…MoreFeasibility of Real-Time Remote Speed Enforcement for Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Studies have shown that a large percentage of vehicles involved in work zone crashes are traveling at excessive speeds. While traditional speed enforcement has been shown to reduce speeds through the …MoreA Methodology for Assessing the Impact of Radar Transmissions on a Work Zone (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
A new method of speed reduction in work zones is being investigated where an informational safety message is sent to drivers equipped with compatible receivers. The Safety Warning System, a currently …MoreState Will Try out Devices Adjusting I-96 Speed Limit (Publication)
Resource Type: Articles, News and Other Non-research Articles
Mid-Michigan drivers will be the first in the state to experiment with a system designed to ease the flow of traffic and improve safety in construction zones. Sensors and electronic signs will adjust …MoreEvaluation of Three Supplementary Traffic Control Measures for Freeway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Controlling traffic in work zones to improve safety has long been a major concern for highway agencies. Three traffic control devices- white lane drop arrows, orange rumble strips, and the CB wizard a…MoreEvaluation of Speed Reduction Techniques at Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The goal of the Midwest States Smart Work Zone Deployment Initiative (MwSWZDI) is to develop better ways of controlling traffic through work zones, which improves traffic safety and traffic operating …MoreTurnpike Will Slow Traffic with Pace Trucks (Publication)
Resource Type: Articles, News and Other Non-research Articles
The Maine Turnpike Authority will use pacer vehicles to help slow traffic through construction zones this year. The specially marked trucks will debut this month when contractors resume the five-year …MorePortable Speed Bump Keeps a Safe Work Zone Around Flaggers (Publication)
Resource Type: Articles, News and Other Non-research Articles
In most cases, motorists entering a work zone decrease the speed of their vehicles and drive more carefully; however, some drivers become frustrated or impatient with traffic delay, making flaggers su…MoreCops in Orange Vests, Hard Hats Carry Out Work-Zone Speeder Sting (Publication)
Resource Type: Articles, News and Other Non-research Articles
A cadre of cops in camouflage - dressed in the hard hats and orange safety garb of work-zone crews - delivered 88 speeding tickets in less than four hours along a stretch of Florida interstate highway…MoreTroopers Don Hardhats to Nab Construction Zone Speeders (Publication)
Resource Type: Articles, News and Other Non-research Articles
Operation hardhat, a Florida Highway Patrol initiative that uses troopers with radar guns posing as surveyors in highway work zones, has gotten off to a rousing start, with tickets flying at a rate of…MorePortable Speed Bumps in Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
In coordination with FHWA and CALTRANS, an engineer involved in the US - Mexico Border Technology Exchange Program has developed portable speed bumps that function much like rumble strips. It is hope…MoreUnder Construction: In the Darkest Hours of Night, Highway Construction Can Be a Thing of Beauty (Publication)
Resource Type: Articles, News and Other Non-research Articles
Statistics show that highway night work is the most dangerous work you can have, but it's become safer since the advent in 1992 of the California Highway Patrol's COZEEP or Construction Zone Enhanced …MoreConstruction Zone Enhanced Enforcement Program (COZEEP) (Publication)
Resource Type: Articles, News and Other Non-research Articles
COZEEP is a powerful tool that effectively improves project safety through the use of supplemental California Highway Patrol Units to assist in the management of traffic passing through the constructi…MoreNorthern Michigan Drivers May See More Police by Construction Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
Drivers in Northern Michigan will see more police patrols near road construction and increased license points for hazardous driving. Legislation proposed by Rep. Jason Allen, R-Traverse City, would in…MoreHighway Construction and Maintenance Zones (Publication)
Resource Type: Other News Releases
The Illinois State Police (ISP) and Illinois Department of Transportation (IDOT) announced end-of-season plans to increase safety in highway construction and maintenance zones for motorists and worker…MoreHighway Construction Zone Safety (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
While construction zones create additional hazards for drivers, highway workers are most at risk. According to the National Highway Traffic Safety Administration(NHTSA), 658 people lost their lives in…MoreImprovements and New Concepts for Traffic Control in Work Zones, Volume 4: Speed Control in Work Zones (Final Report) (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The objective of the research was to determine or develop effective methods of slowing traffic to an acceptable speed in work zones. Factors considered in the study included cost, motorist and worker …MoreControlling Speeds in Highway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The objective of the research was to determine or develop effective methods of slowing traffic to an acceptable speed in work zones. Factors considered in the study included cost, motorist and worker …MoreEffectiveness of Double Fines as a Speed Control Measure in Safety Corridors (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The use of elevated traffic fines, and specifically doubling of applicable traffic fines under certain conditions, is widely used in Oregon as a speed control measure. Double fines have applied to "sa…MoreIdentification of Potential Enhancements for Work Zone Safety in Alabama (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The objective of this report is to evaluate the effectiveness of police presence and double fine signs to reduce speed in work zones in Alabama and to measure the actual speed and time headway of vehi…MoreDeaths in Highway Construction Zones Continue to Rise (Publication)
Resource Type: Articles, News and Other Non-research Articles
The number of people killed in highway work zones is at an all-time high. Most of those killed in work zone crashes were occupants of vehicles that collided with other cars or ran into construction eq…MoreHow MnDOT Sets Speed Limits for Safety: Setting the Best Speed Limit to Increase Road Safety is an Important Part of the Minnesota DOT’s Safety Program (Publication)
Resource Type: Articles, News and Other Non-research Articles
Many improvements in work-zone safety are being implemented in Minnesota. One of these improvements is the increased use of speed limits to control vehicle speeds through street and highway work zones…MoreRoad Work Crash Deaths Decline (Publication)
Resource Type: Articles, News and Other Non-research Articles
PennDOT doubled the money it spent to post state police at work zones in 2001 after realizing that is the best way to curb accidents, injuries and deaths that happen there. The effort not only is to p…MoreFDOT, FHP, and Florida Transportation Builders Urge Caution During National Work Zone Awareness Week: Road Construction Work Zone Fatalities on the Rise Both Nationally and in Florida (Publication)
Resource Type: Other News Releases
The Florida Highway Patrol will be conducting "Operation Hardhat" enforcement operations in work zone areas where increased crashes, injuries, and fatalities have occurred. Operation Hardhat is a sel…More“Operation Hardhat” Protects Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
Seeking to reduce the number of crashes in work zones, the Florida Highway Patrol has employed a variation of a program used elsewhere in the country. Dubbed "Operation Hardhat" by the FHP, troopers d…MoreSlow down or Pay up: Michigan’s Tough Work Zone Laws Could Cost You (Publication)
Resource Type: Articles, News and Other Non-research Articles
In Michigan, you now risk more than just a speeding ticket if you go too fast--you also face tougher penalties than ever.MoreThe UHP Is Targeting Speeding in Work Zones (Publication)
Resource Type: Articles, News and Other Non-research Articles
Motorists are still driving too aggressively and routinely flouting construction zone speed limits in the Interstate 15 corridor through Salt Lake County. The Utah Highway Patrol cracked down on both …MoreNYSDOT, State Police and Thruway Announce “Operation Hard Hat’: Second Year of Unique Speeding Enforcement Effort in Work Zones (Oneida County) (Publication)
Resource Type: Other News Releases
New York State Department of Transportation (NYSDOT) Commissioner Joseph H. Boardman, State Police Superintendent Wayne E. Bennett, and Thruway Authority Executive Director Michael R. Fleischer today …MoreDOT, State Police, Thruway Laud Success of “Operation Hard Hat”: 1,709 Tickets Issued in First Week of Work Zone Speed Enforcement Campaign (Publication)
Resource Type: Other News Releases
New York State Department of Transportation (DOT) Commissioner Joseph H. Boardman, State Police Superintendent James W. McMahon, and Thruway Authority Executive Director Michael R. Fleischer today lau…MoreUse of Police in Work Zones on Highways in Virginia (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
It is generally accepted that one of the most effective ways of controlling speed in a work zone is to have a staffed police car positioned at the beginning of the work zone with its lights flashing a…MoreEvaluation of Data from Test Application of Optical Speed Bars to Highway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The proximity of traffic and workers in highway work zones demand that safety be a high priority. The issue of traffic speeds in highway work zones has long been an issue receiving much attention. Ove…MoreSigns Should Be a Warning (Publication)
Resource Type: Articles, News and Other Non-research Articles
The M42, new variable speed limit signs began operating to slow down people speeding. The M42 is more technologically advanced than the M25, which was introduced in 1994. Paul Watters, the head of roa…MoreDevelopment and Testing of Variable Speed Limit Control Logics for Work Zones Using Simulation (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This study is an attempt to evaluate the performance of various speeds at work zones and to develop VSL control logics that would calculate suitable speeds for different traffic conditions. The resear…MoreSummary of Treatments to Improve Work Zone Speed Limit Compliance (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This is the summary report of the Texas Department of Transportation (TxDOT) sponsored Project 0-4707: Development of Measures for Motivating Drivers to Comply with Speed Limits in Work Zones. The goa…MoreIdentification and Testing of Measures to Improve Work Zone Speed Limit Compliance (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Thousands of crashes occur in work zones each year, leading to numerous fatalities and injuries. A sizeable portion of these crashes can be attributed to excessive speed, which emphasizes the need to …MoreCardboard Cop Car Gets Results (Publication)
Resource Type: Articles, News and Other Non-research Articles
A cardboard cutout police car is slowing traffic at Nelson roadworks sites in an initiative that roading contractor Fulton Hogan hopes to push nationwide.MoreDevelopment and Evaluation of Speed-Activated Sign to Reduce Speeds in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Excess speed is one of the most significant factors contributing to work zone crashes, which, along with work zone fatalities, have increased substantially in the last decade. From the beginning of 20…MoreEvaluation of Strategies to Manage Speed in Highway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Safety in reconstruction and maintenance work zones continues to be the primary concern of transportation engineers. Speeding is one of the major contributors of work zone crashes. To decrease the occ…MoreField Evaluation of Variable Advisory Speed Limit System for Reducing Traffic Conflicts at Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
A practical methodology to reduce the traffic conflicts at work zones was developed and evaluated in the field. The proposed system uses variable advisory speed limits that are determined with a two-s…MoreRevisiting the Use of Drone Radar to Reduce Speed in Work Zones: South Carolina’s Experience (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Speeding through work zones is a major safety concern in South Carolina. The authors evaluated multiple traffic control devices aimed at reducing speeds in South Carolina work zones and found that the…MoreUse of Radar-Equipped Portable Changeable Message Sign to Reduce Vehicle Speed in South Carolina Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This research examines the use of radar equipped portable changeable message signs to reduce driver speeds in South Carolina DOT work zones. The 85th percentile speed, mean speed, and percentage of ve…More