Author(s)

Xiongwei Liu

Corresponding Author

Xiongwei Liu

Abstract

With the development of economy, heavy-haul traffic plays an increasingly important role in highway transportation, which has a significant impact on highway routes. Therefore, it is urgent to study related optimization design and safety performance improvement. This paper aims to analyze the theoretical basis of heavy traffic and highway route through theoretical research, construct the theoretical system of highway route optimization design under heavy traffic, and put forward the optimization strategy based on safety performance improvement. During the research, the optimization design theory of plane, longitudinal section, cross section and line sight distance is discussed in depth, starting from vehicle dynamics, pavement structure response, traffic flow characteristics and so on. By reasonably increasing the radius of horizontal curve, controlling the gradient of longitudinal slope, enhancing the bearing capacity of pavement and optimizing the traffic flow organization, the highway route design can be effectively optimized and its safety performance can be improved. This study provides theoretical basis and technical guidance for heavy traffic highway construction.

Keywords

Heavy traffic; Highway route; Optimize the design; Safety performance