Presently in work zones, standard barricade warning lights are used to provide channelizing and warning functions. These yellow flashing lights are presently used without consideration of the specific … [Read more...] about Barricade Lighting System
Abilities
Driving Performance of Drug-Impaired Bus Drivers in Work Zone Areas
There are several safety issues in work zone areas due to decrease in lane width, and presence of large equipment and on-site workers. The safety issues are compounded for drivers that are also drug … [Read more...] about Driving Performance of Drug-Impaired Bus Drivers in Work Zone Areas
Motorist Understanding of Alternative Displays for Speed Limits in Work Zones
In Texas, speed limits for short-term work zones are reduced speed limits that are posted only when work activity is present. When work activity is not present, the reduced speed limit signs are to be … [Read more...] about Motorist Understanding of Alternative Displays for Speed Limits in Work Zones
Red Retroreflective Raised Pavement Markings: Driver Understanding of Their Purpose
Research was conducted to evaluate drivers' understanding of red retroreflective raised pavement markers (RRPMs) on two-lane and four-lane undivided and divided roadways. The study included 191 … [Read more...] about Red Retroreflective Raised Pavement Markings: Driver Understanding of Their Purpose
Public Opinion and Understanding of Advance Warning Arrow Displays Used in Short-Term, Mobile, and Moving Work Zones
In long-term work zones on multilane highways and/or freeways, the Federal Highway Administration has interpreted the Manual on Uniform Traffic Control Devices to mean that only one advance warning … [Read more...] about Public Opinion and Understanding of Advance Warning Arrow Displays Used in Short-Term, Mobile, and Moving Work Zones
Texas Driver Understanding of Abbreviations for Dynamic Message Signs
This report presents recommendations to improve the design of messages for dynamic message signs (DMSs). Specifically, it presents recommendations for effective abbreviations that can be used when the … [Read more...] about Texas Driver Understanding of Abbreviations for Dynamic Message Signs