An end treatment was developed and crash tested to shield the ends of the concrete safety shape barrier (CSSB) and other narrow rigid objects. It was designed as a temporary treatment for use … [Read more...] about End Treatment for Concrete Barriers Used in Work Zones
Texas Transportation Institute
High Visibility Garments for Use in Work Zones
The increase in accidents involving personnel in construction and maintenance zones prompted a review of the use of high visibility safety garments. This review led to laboratory and field studies … [Read more...] about High Visibility Garments for Use in Work Zones
Model to Calculate the Road User Costs at Work Zones
This report presents a model, QUEWZ, which can be used to calculate the user costs resulting from lane closures through a work zone. QUEWZ calculates the delay costs and speed-change cycling costs of … [Read more...] about Model to Calculate the Road User Costs at Work Zones
Special Traffic Management Requirements for Maintenance Work Zones on Urban Freeways
This report identifies and describes the special traffic handling requirements for maintenance work zones on urban freeways. These special requirements stem from the high speeds, heavy traffic … [Read more...] about Special Traffic Management Requirements for Maintenance Work Zones on Urban Freeways
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
Driver Understanding of Work Zone Flagger Signals and Signaling Devices
The report documents the results of a human factors laboratory study conducted in Texas to evaluate driver understanding of 13 work zone flagger signals. A total of 123 motorists participated in the … [Read more...] about Driver Understanding of Work Zone Flagger Signals and Signaling Devices