EFFICIENT ESTIMATION OF SIGNALIZED LINK TRAVEL TIME USING SMALL SIZE PROBE REPORTS

• LI Qiang

  Department of Civil Engineering, Nagoya University

• MIWA Tomio

  Department of Civil Engineering, Nagoya University

• YAMAMOTO Toshiyuki

  Department of Civil Engineering, Nagoya University

• MORIKAWA Taka

  Graduate School of Environmental Studies, Nagoya University

Abstract

The cost and capacity of the communication between probe vehicles and the operation center impose restrictions on the number of probe vehicles and thus it is expected that reliability of probe reports can be obtained by relatively small number of probe vehicles. Travel time on a signalized link is a multi-peak distribution because there are several subgroups divided by turning movements and intersection delay at downstream. When sample size is small, sampling error arises and it is difficult to estimate population mean using sample mean directly. In this paper, the sources of sampling errors are discussed and an estimation method that minimizes the effect of the sampling errors are proposed. The result shows that performance level of a signalized link can be estimated reliably using the proposed method and small size sample.

Journal

• Proceedings of the Eastern Asia Society for Transportation Studies

  Proceedings of the Eastern Asia Society for Transportation Studies 2007 (0), 304-304, 2007

  Eastern Asia Society for Transportation Studies

Keywords

• signalized link
• estimation
• probe vehicle
• small size

Details

• CRID: 1390282680652644096
• NII Article ID: 130004588603
• DOI: 10.11175/eastpro.2007.0.304.0
• Text Lang: en
• Data Source:
  • JaLC
  • CiNii Articles
• Abstract License Flag: Disallowed