Study of Signal Timing and Traffic Design Methods for Roundabouts
The left-turn with two stops (LWTS) method is commonly used for roundabouts as an effective way to avoid traffic conflict. This study is aimed at the signal timing and traffic design for roundabouts with LWTS. The authors recommend lamps with only motor vehicle signal and discuss the locations of the signal lamps. They also propose circle signs and linear inducing signs for roundabouts. The behavior and needs of pedestrian and bicycle crossings were also considered in LWTS. Lastly, an improved signal timing method was recommended for roundabouts. The city of Shangqiu was used as an example. Results show that the LWTS method has a high release efficiency and the given timing method is suitable for the roundabouts. No overflow occurred during the period of operation. The signal timing and traffic design method proposed here for LWTS control will be a guideline for roundabouts with similar features.
- Record URL:
-
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784482292
-
Supplemental Notes:
- © 2019 American Society of Civil Engineers.
-
Corporate Authors:
American Society of Civil Engineers
1801 Alexander Bell Drive
Reston, VA United States 20191-4400 -
Authors:
- Fu, Qiang
- Zu, Yongchang
- Hu, Jianwei
-
Conference:
- 19th COTA International Conference of Transportation Professionals
- Location: Nanjing , China
- Date: 2019-7-6 to 2019-7-8
- Publication Date: 2019-7
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Monograph Title: CICTP 2019: Transportation in China—Connecting the World
Subject/Index Terms
- TRT Terms: Design methods; Highway design; Left turns; Roundabouts; Traffic signal timing
- Geographic Terms: Shangqiu (China)
- Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;
Filing Info
- Accession Number: 01715129
- Record Type: Publication
- ISBN: 9780784482292
- Files: TRIS, ASCE
- Created Date: Aug 28 2019 5:17PM