Research on Truck Traffic Volume Conditions of Auxiliary Lanes on Two-Lane Highways

Guozhu Cheng, Changru Mu, Liang Xu and Xuejian Kang
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Guozhu Cheng: School of Traffic and Transportation, Northeast Forestry University, Harbin 150040, China
Changru Mu: School of Traffic and Transportation, Northeast Forestry University, Harbin 150040, China
Liang Xu: School of Civil Engineering, Changchun Institute of Technology, Changchun 130012, China
Xuejian Kang: State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang 050043, China

Sustainability, 2021, vol. 13, issue 23, 1-11

Abstract: The larger the proportion of truck traffic volume, the greater the impact on traffic efficiency, and overtaking behavior will also have an impact. Therefore, in order to clarify the truck traffic volume of the freight two-lane highway due to the difficulty of overtaking, an actual vehicle test is carried out. This involves selecting the appropriate two-lane test section, recording each moment and speed in the driver’s overtaking behavior, performing multiple regression analysis to examine the relationship between the overtaking conflict time and design speed and traffic volume, determining a reasonable evaluation series of two-lane road overtaking risk and the corresponding overtaking conflict time threshold by the Fisher optimal segmentation method, and giving an overtaking behavior risk evaluation method based on conflict time. Finally, according to the overtaking conflict time model, different truck traffic conditions are obtained. The research results show that overtaking conflict time is negatively correlated with the traffic volume and design speed of the lane. Through the risk assessment of the corresponding overtaking behavior, the three levels of serious conflict, general conflict and non-conflict are determined, and the freight traffic volume corresponding to different conflict levels at different speeds is calculated, which provides a reference for setting auxiliary lanes for the two-lane freight highway.

Keywords: traffic engineering; time of overtaking conflict; regression analysis; Fisher optimal segmentation method; risk assessment; auxiliary lane; truck (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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