Analytical modeling and sensitivity analysis for travel time estimation on signalized urban networks

Bhaskar, Ashish, Chung, Edward, de Mouzon, Olivier, & Dumont, Andre-Gilles (2008) Analytical modeling and sensitivity analysis for travel time estimation on signalized urban networks. In Powell, J & Smith, W (Eds.) Proceedings of the Transportation Research Board 87th Annual Meeting, 13 - 17 January, 2008, United States of America, Washington, D.C..

View at publisher


This paper presents a model for estimation of average travel time and its variability on signalized urban networks using cumulative plots. The plots are generated based on the availability of data: a) case-D, for detector data only; b) case-DS, for detector data and signal timings; and c) case-DSS, for detector data, signal timings and saturation flow rate. The performance of the model for different degrees of saturation and different detector detection intervals is consistent for case-DSS and case-DS whereas, for case-D the performance is inconsistent. The sensitivity analysis of the model for case-D indicates that it is sensitive to detection interval and signal timings within the interval. When detection interval is integral multiple of signal cycle then it has low accuracy and low reliability. Whereas, for detection interval around 1.5 times signal cycle both accuracy and reliability are high.

Impact and interest:

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

Full-text downloads:

1,410 since deposited on 06 Oct 2010
257 in the past twelve months

Full-text downloads displays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.

ID Code: 37365
Item Type: Conference Paper
Refereed: Yes
Keywords: Highway traffic control systems; Loop detectors; Mathematical analysis; Operations; Route choice; Sensitivity analysis; Signalization; Traffic flow; Traffic signal cycle; Traffic signal timing; Travel time; Urban highways
Subjects: Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100) > Simulation and Modelling (080110)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Transport Engineering (090507)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Deposited On: 06 Oct 2010 22:40
Last Modified: 16 Aug 2012 04:13

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page