Urban Arterial Road Travel Time Variability Modeling Using Burr Regression
Day to day travel time variability measurement is closely related to travel time distribution. Factors affected shape of travel time distribution and its properties were key issues in measuring travel time variability. This paper investigates the role of traffic variables in shaping travel time distribution using Burr regression technique. SCATS degree of saturation along with GPS data have been extracted and used to investigate possible factors associated with travel time variations. The results of Burr regression technique are promising as the values of estimated c are close to the value of the empirical c, and the pdf functions for empirical and estimated data for selected links have similar shape. This technique shows the 10th, 50th and 90th percentiles of lower degree of saturation tend to be lower than those percentiles of the higher degree of saturation yet the day to day travel time variability seems to be lower than high degree of saturation. Given the opportunity provided by the Burr regression technique, it is now possible to estimate the day to day travel time variability at varying levels of the SCATS degree of saturation.
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Supplemental Notes:
- This paper was sponsored by TRB committee ABJ30(3) Travel Time, Speed and Reliability.
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Susilawati
- Taylor, Michael A P
- Somenahalli, Sekhar V C
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Conference:
- Transportation Research Board 93rd Annual Meeting
- Location: Washington DC
- Date: 2014-1-12 to 2014-1-16
- Date: 2014
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: 16p
- Monograph Title: TRB 93rd Annual Meeting Compendium of Papers
Subject/Index Terms
- TRT Terms: Arterial highways; Regression analysis; Traffic oversaturation; Travel time; Urban highways
- Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;
Filing Info
- Accession Number: 01506677
- Record Type: Publication
- Report/Paper Numbers: 14-5654
- Files: TRIS, TRB, ATRI
- Created Date: Feb 7 2014 11:53AM