The Texas Department of Transportation (TxDOT) selected the Texas Transportation Institute (TTI) to investigate new traffic control devices that can improve worker and driver safety. This study … [Read more...] about Study Tests Devices to Improve Work Zone Safety
Evaluation and Assessment
Construction Area Late Merge (CALM) System
The system evaluated comprised 5 VMS, 4 RTMS, 2 microwave traffic sensors, and a laptop-based system control center, all integrated via UHF radio system. The system monitors traffic at each VMS and … [Read more...] about Construction Area Late Merge (CALM) System
Georgia Finds Better Alternative for Directing Traffic Through Taper Lanes
Highway maintenance often forces the Georgia Department of Transportation (DOT) to temporarily close lanes of traffic. In these situations, the DOT usually deploys a series of barrels to show drivers … [Read more...] about Georgia Finds Better Alternative for Directing Traffic Through Taper Lanes
New Device Keeps Traffic Under Control at Elementary School
To address traffic concerns, the Puerto Rico Transportation Technology Transfer Center loaned a local school several flashing stop/slow paddles. The device, developed under the Strategic Highway … [Read more...] about New Device Keeps Traffic Under Control at Elementary School
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
Wizard CB Alert System
The Wizard Work Zone Alert and Information Radio was designed and patented by Highway Technologies Inc. and built and marketed by TRAFCON Industries Inc. It is designed to give drivers of heavy trucks … [Read more...] about Wizard CB Alert System