One of the very valuable traffic control devices for use in work zones is the flashing arrow sign. Unfortunately, like many of the other traffic control devices, it is often misused, causing motorist … [Read more...] about Illustrated Use of Work Zone Traffic Control in Three States
Arrow Panels
Arrow Panel Display Evaluation in Temporary Work Zones
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
Guidelines for the Effective Use and Procurement of Advanced Warning Arrow Panels
This digest summarizes the results of NCHRP Project 5-14, "Advanced Warning Arrow Panel Visibility." The project evaluated the factors affecting the detection and recognition of arrow panels and … [Read more...] about Guidelines for the Effective Use and Procurement of Advanced Warning Arrow Panels
Photometric Requirements for Arrow Panels
Arrow panels are often used in work zones to inform drivers of the need for a lane change or caution on the part of the driver. The Manual on Uniform Traffic Control Devices (MUTCD) requires that Type … [Read more...] about Photometric Requirements for Arrow Panels
Evaluation of Arrow Panel Displays for Temporary Work Zones
The Oregon Department of Transportation evaluated the effectiveness of a "sequentially flashing diamond" arrow panel display as advance caution warning in temporary work zones. This display was … [Read more...] about Evaluation of Arrow Panel Displays for Temporary Work Zones
Flashing Arrowboards in Advance of Freeway Work Zones
The results of controlled field studies conducted by the Texas Transportation Institute to evaluate the effectiveness of flashing arrowboards located in advance of lane-closure work zones are … [Read more...] about Flashing Arrowboards in Advance of Freeway Work Zones