Study for the Improvement of Traffic Safety on Motorway Bend-slope Combinations

The traffic accidents of the curved slope section have been more frequent and concentrated, so how to improve the curved slope section has been an urgent problem to solve in the field of traffic safety at home and abroad. Aiming at a certain high-speed operation stage of the main line curved slope combination section, the existing road conditions of its influencing factors on traffic safety are analysed. The key factors are identified by analysing the influence of turning radius, sight distance and high curve on the safety of vehicle operation. The status quo of the road is investigated by field survey and the vehicle speed data of the road section is obtained by radar and the driving speed is analysed. Combined with the investigation and analysis of traffic accidents and CarSim modelling, the main causes of accidents and the rules of traffic accidents are found out, and suggestions for improving traffic safety are made.