Massachusetts tries to maintain posted speed limits in work zones, but will post advisory speed limits (black on orange) when applicable. In this case, the regular speed limit signs (black on white) … [Read more...] about Work zone speed limit
Management and Organization
Work zone speed limit
In Wisconsin, the design speed generally used for designing work zone geometrics is the same speed used for normal roadway conditions. There is no set statewide work zone speed limit, and reductions … [Read more...] about Work zone speed limit
Procedure for Determining Work Zone Speed Limits
This NCHRP Digest summarizes the findings of NCHRP Project 3-41, "Procedure for Determining Work Zone Speed Limits". The "Manual on Uniform Traffic Control Devices for Streets and Highways" has no … [Read more...] about Procedure for Determining Work Zone Speed Limits
Evaluation of Work Zone Speed Limit Signs with Strobe Lights
The construction zone speed limit sign used in Illinois consists of a regulatory 45 mph speed limit sign augmented with two small strobe lights and two orange colored plates. When the lights are … [Read more...] about Evaluation of Work Zone Speed Limit Signs with Strobe Lights
Synthesis of Safety Research Related to Speed and Speed Limit
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 … [Read more...] about Synthesis of Safety Research Related to Speed and Speed Limit
A Policy on the Establishment of Speed Limits in Work Zones
This report summarizes when reduced speed limits should be used in work zones and the appropriate method for establishing these speed limits. … [Read more...] about A Policy on the Establishment of Speed Limits in Work Zones