This article highlights the potential challenges of safely protecting work operations with shadow vehicles on high-speed facilities serving significant numbers of large trucks. It illustrates the … [Read more...] about Shadow Stretching: New Attenuator Research Adjusts to Heavier Traffic
Construction and Maintenance Equipment
Model Development for Use of Portable Traffic Signals in Conjunction with Pilot Car Operations at Two-Lane, Two-Way Rural Highway Work Zones
A portable traffic signal (PTS) system is a traffic control device designed to facilitate the movement of one-way traffic at work zones where there is a temporary lane closure. The 2009 edition of the … [Read more...] about Model Development for Use of Portable Traffic Signals in Conjunction with Pilot Car Operations at Two-Lane, Two-Way Rural Highway Work Zones
Portable Traffic Signals in Conjunction with Pilot Car Operations at Two-Lane, Two-Way Rural Highway Work Zones
A portable traffic signal (PTS) system is designed to move traffic through two-way rural highway work zones with one lane open to traffic. The primary objective of this study was to evaluate the use … [Read more...] about Portable Traffic Signals in Conjunction with Pilot Car Operations at Two-Lane, Two-Way Rural Highway Work Zones
Visual Warning System for Worker Safety on Roadside Workzones
Growing traffic on US roadways and heavy construction machinery on road construction sites pose a critical safety threat to construction workers. This report summarizes the design and development of a … [Read more...] about Visual Warning System for Worker Safety on Roadside Workzones
Evaluation of Temporary Traffic Signals in Conjunction with Pilot Car Operations at Two-Way Long Temporary Work Zones
The primary objective of this study was to evaluate the use of Portable Traffic Signal (PTS) systems at long, rural two-lane work zones and to compare three different conditions for controlling … [Read more...] about Evaluation of Temporary Traffic Signals in Conjunction with Pilot Car Operations at Two-Way Long Temporary Work Zones
Impacts of Construction Work Zone Equipment and Operations on Vehicle Speeds
Mobile construction operations that are conducted at night and do not employ positive barrier systems present significant safety hazards for workers and motorists. As part of several research studies … [Read more...] about Impacts of Construction Work Zone Equipment and Operations on Vehicle Speeds