Modelling the Relationships Between Headway and Speed in Saturation Flow of Signalised Intersections
The headways between vehicles in the traffic flow of intersections are one of the crucial variables for reasonable signal timing setting and intersection configuration design. Many studies apply constant discharge headways to calculate the saturation flow rate, and scarce studies quantitatively investigate the relationship of headway and speed in the saturation flow. This study endeavours to model the headway–speed relationships of saturation traffic flow at the signalised intersection. Five typical intersections with large traffic demand in Golden Coast City are surveyed to collect data regarding vehicles’ discharging speed and headways. The least squared method and the fitting degree test are applied to model the headway–speed relationships at the signalised intersections and compare the models’ fitting performance. The results indicate that the headway is significantly associated with speed. The headway increases with decreasing speed crossing the intersections. The empirically and quantitatively calibrated relationships between speed and headway can be used to calculate the saturation flow rate in the intersections with different discharging speeds and further support the design of intersections with large traffic demand.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9789811552694
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Supplemental Notes:
- © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2020.
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Corporate Authors:
Springer Singapore
152 Beach Road
Singapore, 189721 -
Authors:
- Teng, Yang
- Xu, Jin
- Gao, Kun
- Zeng, Ziling
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Conference:
- 3rd KES International Symposium on Smart Transportation Systems (KES-STS 2020)
- Date: 2020-6-17 to 2020-6-19
- Publication Date: 2020-5
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 179-188
- Monograph Title: Smart Transportation Systems 2020: Proceedings of 3rd KES-STS International Symposium
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Serial:
- Smart Innovation, Systems and Technologies
- Volume: 185
- Publisher: Springer Singapore
- ISSN: 2190-3018
- Serial URL: https://www.springer.com/series/8767
Subject/Index Terms
- TRT Terms: Headways; Regression analysis; Saturation flow; Signalized intersections; Traffic data; Traffic speed
- Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management;
Filing Info
- Accession Number: 01896966
- Record Type: Publication
- ISBN: 9789811552694
- Files: TRIS
- Created Date: Oct 23 2023 3:06PM