• Skip to primary navigation
  • Skip to main content
  • About
  • Contact
  • Listserv
  • Facebook
  • Twitter
  • Login/Register
workzonesafety.org

National Work Zone Safety Information Clearinghouse

Library of Resources to Improve Roadway Work Zone Safety for All Roadway Users

  • Crash Information
    • Work Zone Fatal Crashes and Fatalities
    • National Estimates of Total and Injury Work Zone Crashes
    • Work Zone Fatal Crash Facts
    • Other Work Zone Crash Related Resources
  • Flagger Information
    • Flagger Training and Certification Requirements by State
    • Flagging Resources Developed Under the FHWA Work Zone Safety Grant Program
    • Classes
    • Videos
    • Job Resources
  • Training
    • FHWA Work Zone Safety Grant Products
    • Roadway Safety Training Program
    • Online Learning Management System
    • Training Courses and Programs
    • Training Videos
    • ARTBA
    • ATSSA
    • NHI
    • NSC
    • LTAP/TTAP
    • WSU
  • Events and Conferences
    • National Work Zone Awareness Week 2021
    • Work Zone Safety Conferences
    • Other Work Zone Related Conferences
    • 2021 Transportation Construction Safety Events Calendar
  • Data Resources
    • Searchable Databases
    • Public Awareness
    • Laws, Regulations, Standards, and Policies
    • Manual on Uniform Traffic Control Devices (MUTCD)
  • Hot Topics
    • Improving Large Truck Safety in Work Zones
    • Smarter Work Zones
    • Transportation Management Plans
    • Accommodating Pedestrians
    • Rear End Crashes
    • Minimizing Construction Interferences with Traffic
    • Managing Speeds
    • Mobile/Short Duration Work Zones
    • Reducing Worker Run-overs and Back-overs
    • Working at Night
    • Reducing Worker Fatigue and Distraction Risks
You are here: Home / Publications / Study on the Length of Median Opening in Expressway Reconstruction and Extension Work Zones

Study on the Length of Median Opening in Expressway Reconstruction and Extension Work Zones

Author/Presenter: Shao, Changqiao; Ma, Sen; Luo, Kai; Qin, Yang
Abstract:

The opening length and influencing factors were studied aiming at the traffic of the two lanes at median opening section in expressway reconstruction and extension work zones. Based on the analysis of vehicle running characteristics in the two lanes at median opening section, a theoretical calculation model is established and the opening section length in different speeds, the width of median and cross slope are put forward. The suggestion values of the opening section length and capacity in different design speeds are put forward using simulation method. Accident form in the work zones are analyzed, the length of the opening section transition area is obtained. TTC was used to evaluate the safety of the opening section, the rear-end collision in different opening lengths are obtained. Simulation results show that the opening section length is in good agreement with the theoretical calculation results, and the operation is good in safety.

Source: CICTP 2020: Advanced Transportation Technologies and Development-Enhancing Connections
Publication Date: 2020
Source URL: Link to URL
Publication Types: Books, Reports, Papers, and Research Articles
Topics: Crashes; Length; Mathematical Models; Median Openings; Rear End Crashes; Simulation; Traffic Speed; Work Zone Safety

Copyright © 2021 American Road & Transportation Builders Association (ARTBA). The National Work Zone Safety Information Clearinghouse is a project of the ARTBA Transportation Development Foundation. It is operated in cooperation with the U.S. Federal Highway Administration and Texas A&M Transportation Institute. | Copyright Statement · Legal Notices/Policies · Disclaimer
American Road and Transportation Builders Association Transportation Development Foundation, American Road and Transportation Builders Association U.S. Department of Transportation Federal Highway Administration Texas A&M Transportation Institute