A vehicle conflict early warning method at unsignaled intersection based on steering intention prediction

Abstract

The invention discloses a vehicle conflict early warning method at a non-signal intersection based on steering intention prediction. Motion relationship, establish an improved vehicle conflict table; the vehicle interacts with the roadside unit, and combines road information and self-vehicle information to predict the steering intention; based on the steering intention prediction information, the expected driving path information is generated and sent to the roadside unit; Path, based on the vehicle conflict table to determine the spatial conflict; for the vehicles with spatial conflicts, the time conflict detection based on the improved PET method is carried out. If there is no conflict, the early warning is ended, and if there is a conflict, the final early warning information is output. Under the technical background of vehicle-road coordination, the present invention takes steering intention prediction as an entry point, can carry out accurate and efficient early warning of traffic conflicts at unsignalized intersections, and has high application value.

Description

technical field [0001] The invention belongs to the field of vehicle-road coordination, and in particular relates to a method for early warning of unsignaled intersection conflict based on steering intention prediction. Background technique [0002] As an important transportation infrastructure, the road traffic network cannot be ignored for its impact on traffic safety. In the road network, the intersection safety problem is particularly prominent. The proportion of accidents at intersections reaches 59.7%, of which the proportion of accidents at unsignaled intersections is as high as 25%-30%. [0003] The non-signaled intersection lacks signal control equipment, the right of way is relatively ambiguous, and the traffic rules cannot be accurately enforced. It mainly relies on the driver's observation and judgment of the surrounding environment to make driving decisions, which has a high potential for traffic accidents. In addition, the scene traffic in various specific wor...

AI Technical Summary

Problems solved by technology

[0003] Unsignalized intersections lack signal control equipment, the right of way is relatively vague, and the rules of passage cannot be accurately implemented. Driving decisions mainly rely on the driver's observation and judgment of the surrounding environment, which has a high risk of traffic accidents

In addition, the scene traffic in various specific working environments is developing rapidly, such as airport scenes, industrial parks, campus environments, etc. There are often many unsignalized intersections in such scene environments, and there is a high risk of conflict

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