Integrated Implementation of Innovative Designs

Alternative intersections and interchanges (AII) such as the Restricted Crossing U-Turn (RCUT), can increase safety and capacity, thereby reducing congestion for both vehicular and non-vehicular traffic. Often, RCUTs provide extended capacity for an existing intersection, typically for intersections which are under consideration for grade separation due to capacity constraints. Limited construction funding can often delay costly bridge projects for years. Consequently, AII designs can be useful in many cases because the intersection strategy provides the opportunity to extend the service life of intersections experiencing problems that will not likely be resolved otherwise in the foreseeable future. While many agencies recognize the operational and safety benefits of RCUT designs, the comparative evaluations undertaken during the selection process often have a very narrow scope. For example, in evaluating the effectiveness of RCUT intersections, studies typically model only vehicular operations. However, the implementation of RCUT intersections may significantly impact other users of other modes, such as pedestrians and bicyclists. In addition, RCUT designs may have broader level impacts on the corridor if operations are improved at one intersection and not at other upstream and downstream intersections. Accordingly, this proposed project will explore system level integration alternatives related to RCUT designs and will provide guidance for their use to optimize operations and to extend the useful life of facilities. In addition, the research team will explore the multimodal impacts of this intersection design to look at ways to improve operations for all users.

• Record URL:
  https://stride.ce.ufl.edu/wp-content/uploads/2017/03/Rouphail-Project-F.pdf
• 

Project

• Status: Active
• Funding: $126678
• Contract Numbers:

  69A3551747104

• Sponsor Organizations:

  Office of the Assistant Secretary for Research and Technology

  Intelligent Transportation Systems Joint Program Office
  Department of Transportation
  Washington, DC  United States  20590
• Managing Organizations:

  Southeastern Transportation Research, Innovation, Development and Education Center (STRIDE)

  University of Florida
  365 Weil Hall
  Gainesville, FL  United States  32611
• Project Managers:

  Tucker-Thomas, Dawn

• Performing Organizations:

  The Citadel

  Department of Civil and Environmental Engineering
  171 Moultrie Street
  Charleston, SC  United States  29409

  Tennessee Tech University

  Department of Civil and Environmental Engineering
  1020 Stadium Drive Box.5015
  Cookeville, TN  United States  38505

  North Carolina State University

  Institute for Transportation Research and Education
  909 Capability Drive, Suite 3600
  Raleigh, NC  United States  27606
• Principal Investigators:

  Rouphail, Nagui

• Start Date: 20170516
• Expected Completion Date: 20181116
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers Program

Subject/Index Terms

• TRT Terms: Design methods; Highway capacity; Highway design; Impact studies; Intersections; Multimodal transportation; Planing; Systems analysis; U turns
• Subject Areas: Design; Highways; Operations and Traffic Management; Pedestrians and Bicyclists; Safety and Human Factors;

Filing Info

• Accession Number: 01659482
• Record Type: Research project
• Source Agency: Southeastern Transportation Research, Innovation, Development and Education Center (STRIDE)
• Contract Numbers: 69A3551747104
• Files: UTC, RiP
• Created Date: Feb 7 2018 9:59AM