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
Texas Transportation Institute
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
Field Evaluation of Flashing Arrowboards at Freeway Work Zones
This report documents research conducted in the evaluation of flashing arrowboards when located in advance of lane closure work zones. The effects of supplemental arrowboard placement were compared to … [Read more...] about Field Evaluation of Flashing Arrowboards at Freeway Work Zones