00621700

Component

http://onlinepubs.trb.org...trr/1991/1320/1320-025.pdf

https://scholar.google.co...urch&publication_year=1991

Computer simulation techniques and their applications to traffic operations have gained popularity in recent years. The traffic experimental and analysis simulation (TEXAS) computer model is a prime example. This model was developed to be used as a tool to evaluate traffic performance at isolated intersections operating under various types of intersection control. The objective of this study was to assess the ability of the TEXAS model in simulating isolated signalized intersections. This assessment was conducted using field data. Eight intersection conditions were used for data collection. Existing field data were obtained from previous studies and supplemented with more data collection where needed. Critical 10-min time periods were chosen for the simulation runs, and the average stopped delays obtained from simulation were compared with the observed stopped delay data. Statistical tests were conducted; the results indicated that in most of the intersection conditions no significant difference was observed for through traffic. However, significant differences between field and simulated results were achieved for left-turning traffic. These findings were limited to eight intersection conditions studied in Arizona, and it suggests that the user of the model is advised to carefully assess the default variables embedded in TEXAS.

This paper appears in Transportation Research Record No. 1320, Freeway Operations, Highway Capacity, and Traffic Flow 1991. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01407170

p. 216-226

1991

Transportation Research Record

0309051533

Figures (2) ; References (7) ; Tables (9)

Alternatives analysis; Evaluation; Field studies; Isolated intersections; Left turns; Signalized intersections; Statistical analysis; Stopped time delays; Through traffic; Traffic simulation

Field data

Data and Information Technology; Highways; Operations and Traffic Management; I71: Traffic Theory

TRIS, TRB, ATRI

Apr 30 1992 12:00AM

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