Maintenance Work Zone Safety Devices Plans

This is volume 2 of the final report on project H-109, Maintenance Work Zone Safety Devices Development and Evaluation and contains plans and specifications of the 12 prototype safety devices that had successfully passed the several phases of the testing and evaluation conducted during the course of the study. The results of the testing and evaluation are discussed in volume 1. Included in this report are the plans for an Ultrasonic Detection Alarm, Queue Length Detector, Direction Indicator Barricade, Snow Plow Blade Markers, Flagger Gate Assembly and other work zone safety devices.