This study was undertaken to better understand the factors that may affect road sign retroreflectivity, specifically age and physical orientation. A better understanding of these factors could provide … [Read more...] about Factors Affecting Sign Retroreflectivity
Traffic Signs
Midwest Smart Work Zone Deployment Initiative Year 3: Fluorescent Yellow-Green Background for Vehicle-Mounted Work Zone Signs
As a part of the Midwest States Smart Work Zone Deployment Initiative (MwSWZDI) Year 3, the impact of the FYG background on improving drivers' lane-changing behavior in advance of a work zone was … [Read more...] about Midwest Smart Work Zone Deployment Initiative Year 3: Fluorescent Yellow-Green Background for Vehicle-Mounted Work Zone Signs
Advance Lane Drop Arrows
The primary goal of this evaluation was to determine the effectiveness of the arrows as located in the approach to a highway work zone. The arrows are intended for use both with stationary long-term … [Read more...] about Advance Lane Drop Arrows
Older Drivers Say … Stop Signs of Confusion
In 1990, eight retired employees of the Illinois Department of Transportation took a break from retirement activity to help IDOT conduct its Older Driver Study of Traffic Control Devices. Those … [Read more...] about Older Drivers Say … Stop Signs of Confusion
Signs of the Times
Driving down the highway, it's easy to take the scenery-the cornfields, the trees, even the road signs-for granted. Often we only notice the center stripe when deciding whether it's safe to pass the … [Read more...] about Signs of the Times
Innovative Traffic Control Devices for Improving Safety at Rural Short-Term Maintenance Work Zones
The Texas Department of Transportation (TxDOT) and the Federal Highway Administration (FHWA) sponsored a Texas Transportation Institute (TTI) research project to determine if innovative traffic … [Read more...] about Innovative Traffic Control Devices for Improving Safety at Rural Short-Term Maintenance Work Zones