Estimation of Urban Street Segment Travel Time Using Buses as Real-Time Speed Probes
Transit buses could be used as general traffic probes in developing urban arterial performance measures. Past bus probe studies are focused on either highway applications or using the so-called archived automatic vehicle location (AVL) bus data, which is not truly useful in advanced traveler information system (ATIS) type applications. As one of the first of its kind, this study applies real-time AVL bus data to infer general vehicle traffic conditions on a signalized street. Exploratory analyses of both real-time AVL bus and general vehicle traffic data reveal bus-car speed relationships are location specific and exhibit rational patterns at different locations. Two types of statistical models, linear regression and state space model, are able to quantify the observed bus-car relationships and produce reasonable speed and travel time estimates for general vehicles, showing the real-time AVL bus probe idea is at work. Further research is underway to fully realize the real-time AVL bus probe idea on urban signalized streets.
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Pu, Wenjing
- Lin, Jie
- Long, Liang
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Conference:
- Transportation Research Board 89th Annual Meeting
- Location: Washington DC, United States
- Date: 2010-1-10 to 2010-1-14
- Date: 2010
Language
- English
Media Info
- Media Type: DVD
- Features: Figures; References; Tables;
- Pagination: 20p
- Monograph Title: TRB 89th Annual Meeting Compendium of Papers DVD
Subject/Index Terms
- TRT Terms: Automatic vehicle location; Bus traffic; Bus transit; Highway operations; Probe vehicles; Public transit; Real time information; Transit operating agencies; Travel time; Traveler information and communication systems
- Subject Areas: Data and Information Technology; Operations and Traffic Management; Public Transportation; I72: Traffic and Transport Planning;
Filing Info
- Accession Number: 01152649
- Record Type: Publication
- Report/Paper Numbers: 10-0722
- Files: TRIS, TRB
- Created Date: Mar 17 2010 8:58AM