Reliable Routing in Transit Networks

In this paper, the authors seek to use newly emerging transit data sources for evaluating variations in transit services and to assist passengers with finding optimal routing strategies when faced with these service variations. A data analysis tool (Transit Data Viewer) is developed that uses space-time trajectories of transit vehicles to build and visualize empirical distributions of key transit operational parameters such as headway, segment running time, dwell time and deviation from schedule. Based on the best fitted headway distribution (as determined by statistical analysis), a transit routing tool is developed, built on the notion of hyperpath (Transit Router). Variations in road traffic conditions and demand patterns can impact transit systems, as can major disruptions caused by extreme weather conditions, serious traffic accidents, unforeseen mechanical failures and human error. The authors' proposed routing tool seeks to find an optimal hyperpath to minimize expected travel time. A large-scale case study with data from the Chicago Transit Authority is used to evaluate the proposed tools.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Appendices; Figures; Tables;
  • Pagination: 92p

Subject/Index Terms

Filing Info

  • Accession Number: 01491565
  • Record Type: Publication
  • Files: UTC, TRIS, RITA, ATRI, USDOT
  • Created Date: Aug 13 2013 4:02PM