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Aug 12, 2020
Study on the Length of Median Opening in Expressway Reconstruction and Extension Work Zones
Authors: Changqiao Shao [email protected], Sen Ma [email protected], Kai Luo [email protected], and Yang Qin [email protected]Author Affiliations
Publication: CICTP 2020
ABSTRACT
The opening length and influencing factors were studied aiming at the traffic of the two lanes at median opening section in expressway reconstruction and extension work zones. Based on the analysis of vehicle running characteristics in the two lanes at median opening section, a theoretical calculation model is established and the opening section length in different speeds, the width of median and cross slope are put forward. The suggestion values of the opening section length and capacity in different design speeds are put forward using simulation method. Accident form in the work zones are analyzed, the length of the opening section transition area is obtained. TTC was used to evaluate the safety of the opening section, the rear-end collision in different opening lengths are obtained. Simulation results show that the opening section length is in good agreement with the theoretical calculation results, and the operation is good in safety.
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© 2020 American Society of Civil Engineers.
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Published online: Aug 12, 2020
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1College of Metropolitan Transportation, Beijing Univ. of Technology, No. 100, Pingleyuan Rd., Beijing 100124. Email: [email protected]
2College of Metropolitan Transportation, Beijing Univ. of Technology, No. 100, Pingleyuan Rd., Beijing 100124. Email: [email protected]
3Guangxi Beibu Gulf Investment Group Co. Ltd., Qinzhou, Guangxi 535000. Email: [email protected]
4Guangxi Beibu Gulf Investment Group Co. Ltd., Qinzhou, Guangxi 535000. Email: [email protected]
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