Urban link travel time estimation based on sparse probe vehicle data

In the urban signalized network, travel time estimation is a challenging subject especially because urban travel times are intrinsically uncertain due to the fluctuations in traffic demand and supply, traffic signals, stochastic arrivals at the intersections, etc. In this paper, probe vehicles are used as traffic sensors to collect traffic data (speeds, positions and time stamps) in an urban road network. However, due to the low polling frequencies (e.g. 1 min or 5 min), travel times recorded by probe vehicles provide only partial link or route travel times. This paper focuses on the estimation of complete link travel times. Based on the information collected by probe vehicles, a three-layer neural network model is proposed to estimate complete link travel time for individual probe vehicle traversing the link. This model is discussed and compared with an analytical estimation model which was developed by Hellinga et al. (2008). The performance of these two models are evaluated with data derived from VISSIM simulation model. Results suggest that the Artificial Neural Network model outperforms the analytical model.

• Record URL:
  https://doi.org/10.1016/j.trc.2012.04.007
• Record URL:
  http://www.sciencedirect.com/science/article/pii/S0968090X12000575
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0968090X
• Supplemental Notes:
  • Abstract reprinted with permission from Elsevier.
• Authors:
  • Zheng, Fangfang
  • van Zuylen, Henk
• Publication Date: 2013-6

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 145-157
• Serial:
  • Transportation Research Part C: Emerging Technologies
  • Volume: 31
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0968-090X
  • Serial URL: http://www.sciencedirect.com/science/journal/0968090X

Subject/Index Terms

• TRT Terms: Floating car data; Links (Networks); Mathematical prediction; Neural networks; Probe vehicles; Signalized intersections; Traffic data; Traffic forecasting; Travel time; Urban areas
• Uncontrolled Terms: Road networks
• Subject Areas: Data and Information Technology; Highways; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 01485222
• Record Type: Publication
• Files: TRIS
• Created Date: May 29 2013 10:30AM