User-Based Transit Signal Priority in a Connected Vehicle Environment Accounting for Schedule Delays and Environmental Impacts

Considering recent advances in connected vehicle technology, the authors propose and assess two user-based transit signal priority (TSP) strategies. The first proposed strategy is designed to minimize the total user delay of a signalized intersection, while, in the second, the authors account also for minimising bus schedule delay. Besides the traffic flow indicators, the authors measure the environmental impact of the proposed TSP strategies. The authors compare the performance of the proposed strategies with a conventional TSP ring barrier controller in a microscopic simulation environment, for a case study considering two adjacent signalized intersections located in Helsinki, Finland. Moreover, in order to perform a fair comparison between different proposed TSP strategies, the authors propose and evaluate a total social cost function. The evaluation of social cost is a practical way for multi-criteria assessment of traffic control strategies, where environmental impacts and traffic flow indicators are converted into comparable units. The findings of this paper show that implementing the proposed strategies is effective in improving TSP performance as well as reducing environmental impacts.

• Record URL:
  https://annualmeeting.mytrb.org/OnlineProgram/Details/19421
• Supplemental Notes:
  • This paper was sponsored by TRB committee ACP25 Standing Committee on Traffic Signal Systems.
• Corporate Authors:

  Transportation Research Board

  ,    
• Authors:
  • Mohammadi, Roozbeh
  • Vosough, Shaghayegh
  • Roncoli, Claudio
• Conference:
  • Transportation Research Board 102nd Annual Meeting
  • Location: Washington DC, United States
  • Date: 2023-1-8 to 2023-1-12
• Date: 2023

Language

• English

Media Info

• Media Type: Digital/other
• Features: References;

Subject/Index Terms

• TRT Terms: Delays; Environmental impacts; Externalities; Mobile communication systems; Signalized intersections; Traffic signal priority
• Geographic Terms: Helsinki (Finland)
• Subject Areas: Environment; Highways; Operations and Traffic Management; Public Transportation;

Filing Info

• Accession Number: 01873538
• Record Type: Publication
• Report/Paper Numbers: TRBAM-23-03456
• Files: TRIS, TRB, ATRI
• Created Date: Feb 22 2023 9:43AM