Synthesis of Information Related to Highway Practices. Topic 48-11. Practices in Two-way, Two-lane Traffic Control

Maintenance of traffic planning is critical to not only minimizing congestion during construction but also providing a safe work zone for both the travelling public and the contractors’ personnel. The typical situation where this must be designed is for the rehabilitation of a rural interstate highway. In this case, the two lanes of traffic in one direction is diverted to a single lane on the opposite side of the highway while the traffic in that direction is also forced to merge from two lanes to a single lane. While the Manual of Uniform Traffic Devices (MUTCD) furnishes general guidance for this situation, many state departments of transportation (DOTs) and/or their contractors have developed innovative practices to improve the basic MUTCD configuration. Since there have literally been hundreds of projects of all sizes, types and levels of complexity completed across the nation where two-way, two-lane traffic control, the literature is virtually empty of successful practices on past projects. Thus, there is a rich set of local lessons learned by individual agencies that would be valuable to the rest of the industry if they can be captured and published in a single document. Therefore, the objective of this synthesis is to identify effective practices for establishing two-way, two-lane traffic control. The synthesis will also explore public and industry outreach efforts that were used successfully by transportation agencies in implementing the delivery of two-way, two-lane traffic control aspects projects, as well as barriers to implementation of the recommended effective practices. Information will be gathered by literature review and a survey of the state DOTs. Project and agency case studies on successful two-way, two-lane traffic control programs and industry outreach efforts will also be included in the synthesis. The synthesis will seek to identify effective practices and lessons learned in the following areas (note this is not an all-inclusive list): (1) Minimum/maximum length standards for two-way, two-lane traffic control. (2) Applicability of two-way, two-lane traffic control to the Alternative Technical Concept (ATC) process during project procurement. (3) Two-way, two-lane traffic control designs/practices during ACM project construction. (4) Impact of incentives/disincentives to accelerate project delivery on using two-way, two-lane traffic control. (5) Planning, design, and construction contract administration process modifications that promote safe work zones in two-way, two-lane traffic control situations. (6) Structural modifications to various project delivery methods for implementation of the effective practices identified in the study. (7) Treatment for side road entrances and driveways during the one lane two way operations. (8) Other useful information as might be found in the literature and survey output.


  • English


  • Status: Proposed
  • Funding: $45000
  • Contract Numbers:

    Project 20-05, Topic 48-11

  • Sponsor Organizations:

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001

    American Association of State Highway and Transportation Officials (AASHTO)

    444 North Capitol Street, NW
    Washington, DC  United States  20001

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Garcia-Colberg, Mariela

  • Start Date: 20160509
  • Expected Completion Date: 0
  • Actual Completion Date: 0
  • Source Data: RiP Project 40820

Subject/Index Terms

Filing Info

  • Accession Number: 01598988
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 20-05, Topic 48-11
  • Files: TRB, RiP
  • Created Date: May 11 2016 1:00AM