The Oregon Department of Transportation evaluated the effectiveness of a "sequentially flashing diamond" arrow panel display as an advance caution warning in temporary work zones. This display was … [Read more...] about Arrow Panel Display Evaluation in Temporary Work Zones
Persons and Personal Characteristics
Use of Signage and Blue Tubular Markers to Improve Access to Businesses during Construction
The study evaluated two non-standard traffic control devices intended to assist motorists in locating business accesses during highway construction. The devices, blue tubular markers and blue signs … [Read more...] about Use of Signage and Blue Tubular Markers to Improve Access to Businesses during Construction
Motorist Comprehension of Traffic Control Devices for Mobile Operations
In 2004, researchers conducted surveys to evaluate motorist comprehension of various mobile traffic control devices used to inform drivers about the number of vehicles in a work convoy; speed … [Read more...] about Motorist Comprehension of Traffic Control Devices for Mobile Operations
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