Research performed to assess the effectiveness of a flashing warning light system for use at work zone lane closures is summarized in this paper. The system is composed of a series of interconnected, … [Read more...] about Sequential Warning Light System for Work Zone Lane Closures
Rural Highways
Construction Costs and Safety Impacts of Work Zone Traffic Control Strategies, Volume I: Final Report
This final report is the first volume of the two-volume series. Research was performed to determine total costs (construction and road user costs) and safety impacts associated with traffic control … [Read more...] about Construction Costs and Safety Impacts of Work Zone Traffic Control Strategies, Volume I: Final Report
Construction Costs and Safety Impacts of Work Zone Traffic Control Strategies, Volume II: Informational Guide
This guide is Volume II of the two-volume series. The report is intended to present an informational guide for highway agencies and contractors to assist them in selecting the most cost-effective of … [Read more...] about Construction Costs and Safety Impacts of Work Zone Traffic Control Strategies, Volume II: Informational Guide
Field Studies of Temporary Pavement Markings for Work Zones on Two-Lane Rural Highways
In response to FHWA's proposed rule requiring that all states use 4-ft pavement markings on 40-ft centers as temporary markings in highway work zones, NCHRP awarded a research contract to the Texas … [Read more...] about Field Studies of Temporary Pavement Markings for Work Zones on Two-Lane Rural Highways
Improvements and New Concepts for Traffic Control in Work Zones, Volume 4: Speed Control in Work Zones (Final Report)
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 … [Read more...] about Improvements and New Concepts for Traffic Control in Work Zones, Volume 4: Speed Control in Work Zones (Final Report)
Traffic Management During Freeway Reconstruction and in Rural Work Zones
This report summarizes the results of studies conducted in Texas to evaluate traffic control and safety at various types of work zones. Based on the study findings, recommendationa for improving work … [Read more...] about Traffic Management During Freeway Reconstruction and in Rural Work Zones