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Traffic organization simulation of expressway rebuilding project(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2012年04期
Page:
38-43
Research Field:
Publishing date:

Info

Title:
Traffic organization simulation of expressway rebuilding project
Author(s):
WEI Yong-qiu1; 2;  ZHAO Li-ping2;  YUAN Chun-jian2;  XU Mei-li2
1. Guangxi Xijiang Development & Investment Group Co Ltd, Nanning 530022, Guangxi, China; 2. Key Laboratory for Special Area Highway Engineering of the Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
road engineering;  expressway rebuilding project;  traffic capacity;  traffic organization;  simulation model
PACS:
U491
DOI:
-
Abstract:
To guarantee the traffic capacity during the expressway reconstruction, the research of traffic organization program was presented. Based on the modeling process, the road condition and traffic condition of simulation models were assumed by analyzing the factors of traffic organization and eliminating the muted ones. Taking Donggang expressway as an example, the simulation model of unidirectional traffic organization pattern was established. The effectiveness of the model was validated by comparing with simulation velocity and test velocity. Simulation results show that the smallest interval length between the two construction section should exceed 6 km. The upper gradual change section should be no less than 30 m whose buffer segment length should be from 300 to 500 m. The lower gradual change section should be also no less than 30 m whose buffer segment length should be from 100 to 200 m. According to current construction state and utilization status of traffic facility, the opening length of central space should be from 80 to 100 m. With the rise of distance between speed-limit sign and upper confluence, the travel speed increases at first and gradually decreases at last, the speed-limit sign set location should be proposed 800 m ahead of construction site. 5 tabs, 5 figs, 9 refs.

References:

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Memo

Memo:
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Last Update: 2012-08-30