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 Limits
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2009 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
Work 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 …MoreWork zone speed limit (Practice)
In Florida:
Regulatory speeds should be established to route vehicles safely through the work zone as close to normal highway speed as possible. Traffic Control Plans (TCPs) for all projects must inc… More
Work zone speed limit (Practice)
In Kentucky: According to Kentucky's Administrative Regulations, the Cabinet can reduce the speed limit by 10 mph in a highway work zone without an engineering or traffic investigation. Reductions gr… More
Work zone speed limit (Practice)
Nevada DOT has a flexible approach to reduction of speed limits when lane widths are reduced, when lanes are closed, shifted or detoured, when bridge false work is necessary, etc. Speed reductions ar… More
Work zone speed limit (Practice)
Michigan policy on speed limit applications is available on the web site below. The policy establishes a maximum 10 mph reduction in a work zone, plus "Where Workers Present 45" signing where posted… More
Work zone speed limit (Practice)
In Oregon: Speed reductions are typically approved for traffic restrictions that remove recovery areas such as shoulder, narrow lanes below minimum standards; areas where equipment and workers are act… More
Work 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
Work zone speed limit (Practice)
New Hampshire DOT does not have any formal policy in place regarding speed limit reductions in work zones. In their coordination meetings, the Bureau of Highway Design and Bureau of Construction decid… More
Work zone speed limit (Practice)
In Pennsylvania: In construction, maintenance, or utility short-term operations, a work zone speed limit up to 10 mph below the normal speed limit may be established without an engineering and traffic… More
Evaluation of Work Zone Speed Limits: An Objective and Subjective Analysis of Work Zones in Missouri (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This study objectively and subjectively examined speed characteristics and driver compliance with the posted speed limit in Missouri work zones. The objective evaluation collected vehicle speeds from …MoreWork zone speed limit (Practice)
Advisory speed limits are used to identify safe speeds for a specific condition within a work zone. The signs are installed by the appropriate governing authority. Black-and-orange signs are used in a… More
Work zone speed limit (Practice)
The Vermont Agency of Transportation (VTrans) implements speed limit reductions on many state highway construction projects throughout the state. The decision to reduce the speed limit is typically ma… More
How 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: 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…MoreWork zone speed limit (Practice)
MoDOT has the authority to set speed limits on the state highway system. This power extends to establishing speed limits in temporary traffic control zones, where the speed limit may be reduced from t… More
Work zone speed limit (Practice)
In Indiana: Speed are reduced based on the volume of traffic, existing posted speed, and type of project (e.g., lane closures or restrictions). Normally speed reductions affect only interstate roadway… More
Work zone speed limit (Practice)
NYSDOT's Work Zone Speed Reduction policy, detailed in Engineering Instruction 08-030 (see web site below), encourages use of advisory or recommended speeds with speed limit reductions limited to wher… More
Work Zone Speed Limit (Practice)
In Illinois:
Illinois reduces speeds on freeways for lane closures (usually to 55 mph) and for the presence of workers (to 45 mph). State policy also allows for a reduction of speed if an engineering… More
ODOT Wants to Reduce the Speed Limit in Temporary Construction Zones (Publication)
Resource Type: News and Other Non-research Articles
The recent deaths of Randy Roginski and Eric Kirkbride, two Ohio construction workers, have caused a great deal of concern for the Ohio Department of Transportation (ODOT). Both workers were struck an…MoreA Driver Questions Work Zone Speed Limits in Maryland (Publication)
Resource Type: News and Other Non-research Articles
In a letter to Dr. Gridlock, David Rabadan of Annandale asked why drivers are given a 12-‰mph “free pass” to speed, suggesting that Maryland’s law is too easy on speeders. In his response, Dr…MoreOn the Road: Construction Zones Now Covered by Highway Traffic Act (Publication)
Resource Type: 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…MoreVictoria Cracks Down on Low Roadwork Speed Limits Across the State (Publication)
Resource Type: News and Other Non-research Articles
As a result of a thirty-eight billion dollar Victorian Transport Plan, motorists should expect to see an increase in the number of work zones in Victoria. Work zones require motorists to reduce their…MoreWork zone speed limit (Practice)
Ohio DOT has a policy based on Ohio law for reducing speed limits in a work zone. The policy explains the requirements for implementing a speed reduction in a work zone. It is documented in Traffic En… More
Driving Speed Behavior of Cars and Trucks on Six-Lane Highway Work Zone Considering Lane and Location Deviation (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zones are not only traffic bottlenecks, but also critical points for the safety of both vehicle occupants and workers. Vehicle speed is a key factor to estimate traffic efficiency and understand …MoreWork zone speed limit (Practice)
In Delaware, speed limits are reduced in work zones where physical conditions of a roadway or conditions of the roadside change in ways that will make drivers less comfortable and therefore they will … More
Round-the-Clock Safety Needed in Work Zones (Publication)
Resource Type: News and Other Non-research Articles
In this article, Dr. Gridlock addressed the question regarding if work zone speed limits apply on a holiday or Saturday when no work is being done. He pointed out that the work zone hazards would sti…MoreWork zone speed limit (Practice)
Maine reduces speed limits on some high-volume or high-speed roadways. The speed is not reduced below 25 mph. All interstate projects can have reduced speed, including all classes of high-speed and/or… More
Work zone speed limit (Practice)
In Minnesota, design speeds used for designing work zone geometrics depend on design speeds of approaching and departing roadways. Methods found to be effective for motorist compliance include: Troope… More