Analysis of Signalized Intersection U-Turn Design Based on the Micro-Simulation Study
Investigations indicate that direct-left-turns (DLT) at signalized intersections create many conflicts and disturbances. A U-turn is a traffic organization method to improve the safety of the left turning vehicles. There are two forms of U-turns, depending on the location of U-turn bay. This paper researches the optimal location of the U-turn bay, taking a typical signalized intersection as an example, and compares the effectiveness of the two cases. Based on the microscopic traffic simulation software TSIS, this paper makes a contrast of the Travel Time Total, Speed Average, as well as Speed Variance of the two forms of U-turn. According to the analytical and simulation results, it can be found that the U-turn is more effective than the DLT, and the First form is more prominent in increasing the speed average and lowering the speed variance in the particular situation tested.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784412442
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Supplemental Notes:
- © 2012 American Society of Civil Engineers.
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Corporate Authors:
American Society of Civil Engineers
1801 Alexander Bell Drive
Reston, VA United States 20191-4400 -
Authors:
- Lu, Linjun
- Wei, Daimei
- Lu, Jian John
- Li, Zhengming
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Conference:
- Twelfth COTA International Conference of Transportation Professionals
- Location: Beijing , China
- Date: 2012-8-3 to 2012-8-6
- Publication Date: 2012-8
Language
- English
Media Info
- Media Type: Web
- Features: Figures; References; Tables;
- Pagination: pp 2266-2277
- Monograph Title: CICTP 2012: Multimodal Transportation Systems—Convenient, Safe, Cost-Effective, Efficient
Subject/Index Terms
- TRT Terms: Left turns; Microsimulation; Signalized intersections; Traffic conflicts; Turning lanes; U turns
- Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;
Filing Info
- Accession Number: 01505201
- Record Type: Publication
- ISBN: 9780784412442
- Files: TRIS, ASCE
- Created Date: Jan 27 2014 11:02AM