400 South Corridor Assessment

Local transportation agencies in the Salt Lake City (SLC) Metropolitan Area spent more than a decade working toward building a sustainable regional transportation system. Light Rail Transit (LRT) is an integral part of that system. Currently, three LRT lines operate along the Wasatch Front area. A new line between the SLC International Airport and the University of Utah area currently is under consideration. Due to implementation of an additional LRT line, it is anticipated that an expected increase in frequency of LRT trains will worsen traffic and transit performance of a large and complex multi modal network. The goal of this research is to estimate and analyze the impact of LRT Transit Signal Priority (TSP) on other modes of transportation and the performance of a transportation network using microsimulation environment. The most prominent feature of the analyzed traffic network is a diverse signal timing environment with predictive priority for LRT. Successful integration of VISSIM simulation software and Siemens NextPhase virtual controller enabled realistic representation of real-time predictive priority settings, which allowed for a comprehensive analysis of traffic and transit performance measures on different levels. Results showed the most severe impacts occurred at intersections in the downtown area where multiple LRT lines intersected. However, certain areas for improvement were identified. Proposed procedures and their effectiveness were demonstrated toward reducing adverse effects of LRT expansion, which would validate potential implementation of the proposed strategies in the field.

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  • Supplemental Notes:
    • This document was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
  • Corporate Authors:

    University of Utah, Salt Lake City

    Department of Civil & Environmental Engineering
    Salt Lake City, UT  United States  84112

    Florida Atlantic University, Boca Raton

    Department of Civil, Environmental and Geomatics Engineering
    Boca Raton, FL  United States 

    Arizona State University, Tempe

    School of Sustainable Engineering and the Built Environment
    Tempe, AZ  United States  85287-5306

    Mountain-Plains Consortium

    North Dakota State University
    Fargo, ND  United States  58108

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590
  • Authors:
    • Zlatkovic, Milan
    • Stevanovic, Aleksandar
    • Zhou, Xuesong
    • Tasic, Ivana
    • Ostojic, Marija
  • Publication Date: 2017-3


  • English

Media Info

  • Media Type: Digital/other
  • Features: Appendices; Figures; References; Tables;
  • Pagination: 401p

Subject/Index Terms

Filing Info

  • Accession Number: 01633355
  • Record Type: Publication
  • Report/Paper Numbers: MPC 17-318
  • Created Date: Apr 28 2017 10:42AM