Resource Type: Brochures and Fact Sheets
This fact sheet is designed to highlight common pitfalls in estimating potential impacts that can result from implementing a traffic control plan as well as strategies that can help reduce work zone c…MoreTraffic Congestion
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Measuring work zone performance (Practice)
Michigan is in the process of developing policies in relation to the FHWA Final Rule. In examining and measuring work zone performance, one of the items the state is looking at is expanding the use of… More
Pioneering Change in Pennsylvania – Keystone State Traffic Control Contractors Change Tactics to Meet New Requirements, Demands (Publication)
Resource Type: News and Other Non-research Articles
Article discussing devices being used by the Pennsylvania Department of Transportation to reduce work zone congestion and accidents.MoreA Study of the Visibility and Effectiveness of Fluorescent Retroreflective Traffic Control Signing in Work Zone Applications (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Road works present a special challenge to both the driver and the traffic engineer. Work zone accident statistics attest to the need for safety improvements. One way traffic engineers have attempted t…MoreTraffic Capacity, Speed, and Queue-Discharge Rate of Indiana’s Four-Lane Freeway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
In addition to traffic capacity, vehicle speeds and queue-discharge rates at work zones are essential in assessment of work zone traffic delays and user costs. The traffic flow characteristics of free…MoreEvaluating the Effectiveness of Traffic Diversion and Managed Lanes on Highway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Temporary work zones (TWZs) have become the second largest contributor to the non-recurring delay of U.S. highways, causing nearly 24 % of all non-recurring delay and 10 % of overall delay. Efficient …MoreToronto Safe Work Zone Pilot Brings Highway Safety Concept to City (Publication)
Resource Type: News and Other Non-research Articles
Highway drivers have become accustomed to bold signs in work zones, advising them about lane reductions and travel delays. The City of Toronto is testing a similar concept as part of its Smart Work Zo…MoreINDOT Adjusts Traffic Lights to Ease Gridlock in Downtown Indy Because of I-65 Construction (Publication)
Resource Type: News and Other Non-research Articles
The I-65 construction has caused a traffic gridlock in downtown Indianapolis. Frustrated commuters turned to Call 6 for help and Call 6 Investigates took their concerns to the city and the state. …MoreTomTom to Provide Real Time Traffic Data to Assist Maastricht in Minimizing Traffic Disruption During Major Construction Work on the A2 (Publication)
Resource Type: Other News Releases
TomTom will provide real time traffic data to Avenue2, the construction company in charge of building a new tunnel under the A2 motorway. With this information Avenue2 can monitor in real time the tra…MoreS.R. 22 Reconstruction Project: An Incident and Public Information Success in the Lehigh Valley, Pennsylvania (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This report discusses the reconstruction project of the S.R. 22 Highway which runs through the Lehigh Valley in Pennsylvania. It includes the process of developing and implementing the Transportation …MoreEffects of Short-Term Lane Closures on the Traffic Flow of Freeways (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
One of the main causes of congestion on freeways are lane closures due to short-term construction works or accidents. To avoid congestion due to these events, this study aims at analyzing traffic flow…More2007 National Traffic Management & Work Zone Safety Conference
The National Traffic Management & Work Zone Safety Conference – the premier event for traffic management and roadway safety professionals was held October 9-12 in Fort Lauderdale Florida… More
Don’t Feel Cheated: ‘Late Mergers’ in Construction Zones can Actually Ease Traffic Congestion (Publication)
Resource Type: News and Other Non-research Articles
Most drivers believe they are abiding by proper roadway etiquette when they merge as soon as possible after being notified of a lane closure. Because most drivers merge early, an open lane is created …MoreDynamic Late Merge Control Concept for Work Zones on Rural Interstate Highways (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Conventional traffic control plans for lane closures of rural interstate normally work well as long as congestion does not develop. However, when the traffic demand exceeds the capacity of the work zo…MoreIntelligent Transportation Systems in Work Zones – A Case Study: Work Zone Travel Time System (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This case study is one in a series of documents that examines the use of Intelligent Transportation Systems (ITS) in work zones. It reports reducing congestion with the use of a Traffic Management Con…MoreMachine Learning Approach to Forecast Work Zone Mobility Using Probe Vehicle Data (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The aim of deploying intelligent transportation systems (ITS) is often to help engineers and operators identify traffic congestion. The future of ITS-based traffic management is the prediction of traf…MoreModification of QUEWZ Model to Estimate Fuel Costs and Tailpipe Emissions (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Traffic congestion created by urban highway construction and rehabilitation activity imposes substantial cost burdens on highway users. In their attempts to quantify and predict such costs, transporta…MoreTechnical Assistance Report – Traffic Management Techniques for Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The purpose of this effort was to conduct a literature review and canvass other state departments of transportation (DOTs) to identify new traffic management and construction techniques for use on pro…MoreReal-Time Information Reduces Accidents and Congestion in Work Zones (Publication)
Resource Type: News and Other Non-research Articles
This article discusses a way to reduce accidents and congestion in work zones by using a new device called the Adaptir (Automated Data Acquisition and Processing of Traffic Information in Real-Time), …MoreDetermining Queue and Congestion in Highway Work Zone Bottlenecks (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This study investigated some of the issues in capacity, queue length, and delay estimation in work zones. In particular, the current methods for analyzing congestion in work zones are examined. Furthe…MoreApplication of LiDAR and Connected Vehicle Data to Evaluate the Impact of Work Zone Geometry on Freeway Traffic Operations (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Extensive literature exists regarding recommendations for lane widths, merging tapers, and work zone geometry to provide safe and efficient traffic operations. However, it is often infeasible or unsaf…MoreIndiana Lane Merge System for Work Zones on Rural Freeways (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The Indiana Department of Transportation and Purdue University have been investigating and implementing a novel traffic control system at two-lane freeway work zone entries to reduce the number of agg…MoreA Model for Estimating Excess User Costs at Highway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Highway work zones reduce available lanes for traffic, form traffic bottlenecks, and cause traffic delays and congestion. The additional travel time and effort involved in changing driving maneuvers a…MoreAnalyzing and Improving the Performance of Dynamic Message Sign Reporting Work Zone—Related Congestion (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Dynamic message sign (DMS) systems aim to provide realistic, reliable, and real-time traffic information to roadway users. This study investigated the performance of a DMS present at a work zone that …MoreVariable Speed Limits Ease Congestion, Reduce Crashes on Highways: Study (Publication)
Resource Type: News and Other Non-research Articles
In an effort to make traffic move more smoothly, researchers at the University of Missouri tested the effectiveness of Variable Advisory Speed Limit (VASL) systems, which provide drivers with a recomm…MoreMeeting the Customer’s Needs for Mobility and Safety During Construction and Maintenance Operations (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This report describes "Best Practices" that are being implemented by various states in order to increase mobility and safety within construction and maintenance zones. The purpose of this quality impr…MoreThe National Performance Management Research Data Set (NPMRDS) and Application for Work Zone Performance Measurement (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Transportation agencies are increasingly using probe vehicle data for transportation system performance management and as a resource for meeting the federal requirements of monitoring and reporting co…More