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
Regulation
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
Work Zone Speed Limit Procedure
A procedure was developed for determining work zone speed limits usable during the design or construction phases of a roadway construction project. The procedure classifies work zones by the potential … [Read more...] about Work Zone Speed Limit Procedure
Evaluation of Speed Limits in Kentucky
The objectives of this study were to examine current criteria and procedures used for setting speed limits on public roads and to recommend appropriate speed limits for various types of roadways. The … [Read more...] about Evaluation of Speed Limits in Kentucky
Guide to Establishing Speed Limits in Highway Work Zones
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 … [Read more...] about Guide to Establishing Speed Limits in Highway Work Zones