01674460

Monograph

http://www.trb.org/Main/Blurbs/177745.aspx

Temporary traffic control (TTC), also known as maintenance of traffic, is critical to minimizing congestion and maintaining mobility during planned and unplanned activities as well as providing a safe work zone for both road users and workers. This synthesis identifies innovative practices and devices for establishing one-lane traffic control on rural two-lane highways. Specifically, this synthesis sought to identify practices and lessons learned in many areas, including construction versus maintenance activities, day and nighttime operations, length of lane closures, delay and other operational impacts, treatments for side roads and driveways, corridor management of work zones, and innovative devices used to support one-lane two-way (1L2W) operations. A literature review and detailed survey responses from 45 departments of transportation (DOTs) are presented. Survey questionnaire results indicated that human flagger control is the most common traffic control method utilized in 1L2W operations. Other findings show that pilot cars and temporary traffic control signals (TTCSs) are frequently used by state DOTs. Over 66% of the reporting state DOTs use design criteria such as maximum length of closure, maximum traffic volumes, maximum target vehicle delays, and maximum speed limit for selecting the traffic control method in 1L2W operations. State DOTs frequently use a combination of self-managed control, flagger, and TTCSs to control traffic on side roads within a single-lane TTC zone.

Project 20-05, Topic 48-11

English

153p

2018

NCHRP Synthesis of Highway Practice

9780309390347

Digital/other

Appendices; Figures; Photos; References; Tables

Driveways; Flaggers; Lane closure; Roundabouts; Rumble strips; Rural highways; Single lane traffic; Traffic control; Traffic signals; Two lane highways; Work zone safety; Work zone traffic control; Work zones

Temporary traffic control

Highways; Maintenance and Preservation; Operations and Traffic Management

TRIS, TRB, ATRI

Jul 5 2018 10:34AM