Impact of Guideline Markings on Saturation Flow Rate at Signalized Intersections
Joint Authors
Qin, Zhengtao
Zhao, Jing
Liang, Shidong
Yao, Jiao
Source
Journal of Advanced Transportation
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-04-08
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Many intersections around the world are irregular crossings where the approach and exit lanes are offset or the two roads cross at oblique angles.
These irregular intersections often confuse drivers and greatly affect operational efficiency.
Although guideline markings are recommended in many design manuals and codes on traffic signs and markings to address these problems, the effectiveness and application conditions are ambiguous.
The research goal was to analyze the impact of guideline markings on the saturation flow rate at signalized intersections.
An adjustment estimation model was established based on field data collected at 33 intersections in Shanghai, China.
The proposed model was validated using a before–after case study.
The underlying reasons for the impact of intersection guideline markings on the saturation flow rate are discussed.
The results reveal that the improvement in the saturation flow rate obtained from painting guide line markings is positively correlated with the number of traffic lanes, offset of through movement, and turning angle of left-turns.
On average, improvements of 7.0% and 10.3% can be obtained for through and left-turn movements, respectively.
American Psychological Association (APA)
Qin, Zhengtao& Zhao, Jing& Liang, Shidong& Yao, Jiao. 2019. Impact of Guideline Markings on Saturation Flow Rate at Signalized Intersections. Journal of Advanced Transportation،Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1169632
Modern Language Association (MLA)
Qin, Zhengtao…[et al.]. Impact of Guideline Markings on Saturation Flow Rate at Signalized Intersections. Journal of Advanced Transportation No. 2019 (2019), pp.1-13.
https://search.emarefa.net/detail/BIM-1169632
American Medical Association (AMA)
Qin, Zhengtao& Zhao, Jing& Liang, Shidong& Yao, Jiao. Impact of Guideline Markings on Saturation Flow Rate at Signalized Intersections. Journal of Advanced Transportation. 2019. Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1169632
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1169632