The national Manual on Uniform Traffic Control Devices (MUTCD) does not prohibit the use of a pilot vehicle in conjunction with portable traffic control signals (PTCSs), but it does require that a … [Read more...] about Field Evaluation of Pilot Vehicles and Portable Traffic Control Signals With and Without a Flagger
Maintenance Equipment
Shadow Stretching: New Attenuator Research Adjusts to Heavier Traffic
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
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
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
Portable Positive Protection: A Guide for Short Duration and Short Term Work Zones
This guideline covers various types of positive protection devices that can be easily placed and moved for short duration and short term work operations, especially compared with traditional portable … [Read more...] about Portable Positive Protection: A Guide for Short Duration and Short Term Work Zones