An adaptive transit signal priority strategy using GPS/AVL and wireless communication systems

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Current signal priority strategies implemented in various US cities mostly utilize sensors to detect buses at a fixed or preset distance away from an intersection. Traditional presence detection systems, ideally designed for emergency vehicles, usually send signal priority request after a preprogrammed time offset as soon as transit vehicles were detected without the consideration of bus readiness. The objective of this study is to integrate the already equipped GPS/AVL system on the buses and develop an adaptive signal priority strategy using wireless communications that could consider the bus schedule adherence, number of passengers, vehicle location and speed. City of Minneapolis recently deployed wireless technology to provide residents, businesses and visitors with wireless broadband access anywhere in the city. Communication with the roadside controller for signal priority may be established using the readily available 802.11x WLAN (Wireless LAN) or the DSRC (Dedicated Short Range Communication) 802.11p protocol currently under development for wireless access in vehicular environment. This paper describes our proposed priority strategy, its evaluation using microscopic traffic simulation, and the embedded prototype systems.

Original languageEnglish (US)
Title of host publication15th World Congress on Intelligent Transport Systems and ITS America Annual Meeting 2008
Pages688-699
Number of pages12
Volume1
StatePublished - Dec 1 2008
Event15th World Congress on Intelligent Transport Systems and ITS America Annual Meeting 2008 - New York, NY, United States
Duration: Nov 16 2008Nov 20 2008

Other

Other15th World Congress on Intelligent Transport Systems and ITS America Annual Meeting 2008
CountryUnited States
CityNew York, NY
Period11/16/0811/20/08

Keywords

  • GPS/AVL
  • Transit signal priority
  • Wireless communications

Fingerprint Dive into the research topics of 'An adaptive transit signal priority strategy using GPS/AVL and wireless communication systems'. Together they form a unique fingerprint.

Cite this