Reducing bunching with bus-to-bus cooperation

Schedule-based or headway-based control schemes to reduce bus bunching are not resilient because they cannot prevent buses from losing ground to the buses they follow when disruptions increase the gaps separating them beyond a critical value. (Following buses are then overwhelmed with passengers and cannot process their work quick enough to catch up.) This critical gap problem can be avoided, however, if buses at the leading end of such gaps are given information to cooperate with the ones behind by slowing down. This paper builds on this idea. It proposes an adaptive control scheme that adjusts a bus cruising speed in real-time based on both, its front and rear spacings much as if successive bus pairs were connected by springs. The scheme is shown to yield regular headways with faster bus travel than existing control methods. Its simple and decentralized logic automatically compensates for traffic disruptions and inaccurate bus driver actions. Its hardware and data requirements are minimal.

Record URL:
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/01912615
Supplemental Notes:
- Abstract reprinted with permission from Elsevier.
Authors:
- Daganzo, Carlos F
- Pilachowski, Josh
Publication Date: 2011-1

Language

English

Media Info

Media Type: Print
Features: Appendices; Bibliography; Figures; References; Tables;
Pagination: pp 267-277
Serial:
- Transportation Research Part B: Methodological
- Volume: 45
- Issue Number: 1
- Publisher: Elsevier
- ISSN: 0191-2615
- Serial URL: http://www.sciencedirect.com/science/journal/01912615

Subject/Index Terms

TRT Terms: Adaptive control; Bunching; Bus drivers; Bus traffic; Cooperation; Headways; Vehicle spacing
Uncontrolled Terms: Critical gaps; Cruising speeds
Subject Areas: Operations and Traffic Management; Public Transportation;

Filing Info

Accession Number: 01323857
Record Type: Publication
Files: TRIS
Created Date: Dec 28 2010 1:30PM