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Sep 21, 2015
Acceleration Length Model of an Eight-Lane Freeway with a Two-Lane Ramp Based on Driving Behavior
Authors: Yadan Qiao [email protected], Yifeng Wu [email protected], Zhongyin Guo [email protected], and Haifeng Wan [email protected]Author Affiliations
Publication: ICTE 2015
Abstract
The current guidelines in China are mainly based on four-lane freeway, which do not fit eight-lane freeway well. Therefore, this paper researched traffic stream characteristics of the on-ramp region of Zhengyi interchange. As a result, the acceleration lane is divided into three regions—the region marked with entrance markings, the region where lane 1 connected with the inside lane of the ramp and the region where lane 1 connected with the outside lane, among which, the minimum length of merging length is calculated as a non-linear integer programming (NLIP) based on the gap acceptance theory and traffic volume. The trial results of the models above show that the present recommended value of acceleration lane length and cannot meet the vehicles’ merging demand under secondary serve level when the freeway is eight-lane with two-lane ramp.
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© 2015 American Society of Civil Engineers.
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Published online: Sep 21, 2015
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Key Laboratory of Road and Traffic Engineering, Ministry of Education, Tongji University, Shanghai 201804, China. E-mail: [email protected]
Shanxi Expressway Authority, Taiyuan, Shanxi 030006, China. E-mail: [email protected]
Key Laboratory of Road and Traffic Engineering, Ministry of Education, Tongji University, Shanghai 201804, China. E-mail: [email protected]
Key Laboratory of Road and Traffic Engineering, Ministry of Education, Tongji University, Shanghai 201804, China. E-mail: [email protected]
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