Many work zones require lane closures, and road users need to be notified of these closures through appropriate upstream signage. This literature review found several previous studies indicating … [Read more...] about Lane Reduction Signs for Work Zones: Driver Comprehension and Alternatives to the U.S. MUTCD W4-2 Sign — Literature Review
Cognition
Motorists’ Understanding of Automated Flagger Assistance Devices in Work Zones
Automated flagger assistance devices (AFADs) are designed to be operated remotely by a flagger positioned outside the travel lanes and thus to reduce their exposure to vehicular traffic. There are two … [Read more...] about Motorists’ Understanding of Automated Flagger Assistance Devices in Work Zones
Barricade Lighting System
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
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