Prediction of transit vehicle arrival time for signal priority control: Algorithm and performance

Chin Woo Tan, Sungsu Park, Hongchao Liu, Qing Xu, Peter Lau

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

We develop an algorithm for predicting the arrival times of a transit vehicle at signalized intersections, with a focus on meeting the accuracy requirement associated with signal priority control applications. The algorithm uses both historical and real-time Global Positioning System (GPS) vehicle location data. There are no data from other detectors, such as loops or cameras. The arrival time prediction is formulated as an optimal a posteriori parameter estimation problem, where the model is consisted of a historical model and an adaptive model that adaptively adjusts its filter gain based on real-time data. The estimates generated by these two models are fused in a weighted average derived from the solution of the parameter estimation problem. The prediction algorithm adaptively adjusts its weight distribution using error variances obtained from the two models. We include some simulations of field test results and their statistics to demonstrate the performance and convergence of the solution.

Original languageEnglish
Article number4668443
Pages (from-to)688-696
Number of pages9
JournalIEEE Transactions on Intelligent Transportation Systems
Volume9
Issue number4
DOIs
StatePublished - Dec 2008

Keywords

  • Error convergence
  • Historical and real-time adaptive models
  • Intersection arrival time prediction
  • Signal priority
  • Vehicle location data

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