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Highway lane changing risk evaluation method based on transverse and longitudinal kinematic characteristic distribution

A kinematic feature and risk detection technology, applied in the field of traffic safety, can solve problems such as inability to distinguish individual driving characteristics, operational errors, traffic accidents, etc.

Active Publication Date: 2019-02-19
CHONGQING UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

However, the expression formulas of the above factors vary due to changes in the driving environment and vehicle performance, so it is impossible to distinguish individualized driving characteristics
In addition, wrong driving habits will lead to operational errors and even traffic accidents

Method used

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  • Highway lane changing risk evaluation method based on transverse and longitudinal kinematic characteristic distribution
  • Highway lane changing risk evaluation method based on transverse and longitudinal kinematic characteristic distribution
  • Highway lane changing risk evaluation method based on transverse and longitudinal kinematic characteristic distribution

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Embodiment Construction

[0071] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0072] See attached Figure 1-6 , a high-speed lane-changing risk detection method based on the distribution of lateral and longitudinal kinematic features, the method includes the following steps:

[0073] 1) Obtain the vehicle trajectory parameters during the high-speed lane change process; the speed and acceleration direction of the actual acquired data set is the same as the vehicle running direction, which is not conducive to the analysis of the horizont...

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Abstract

The invention relates to the technical field of traffic safety, and specifically discloses a highway lane changing risk evaluation method based on transverse and longitudinal kinematic characteristicdistribution. The method comprises the steps of: calculating a maximum value of transverse acceleration as a driving criterion of a vehicle based on transverse kinematic characteristic distribution; calculating a driving criterion of the vehicle based on longitudinal kinematic characteristic distribution; calculating a comprehensive driving criterion; calculating a real-time minimum safe distance;calculating a transverse risk index; calculating a longitudinal risk index; and performing risk detection to obtain a result. According to the highway lane changing risk detection method based on transverse and longitudinal kinematic characteristic distribution, a personalized driving discrimination method capable of representing the personalized characteristics of drivers and a lane changing risk evaluation method are established based on a highway lane changing process; a reference is provided for the optimization of lane changing auxiliary; the intelligent process of vehicles is accelerated; the probability of traffic accident occurrence and the casualties and property loss caused by traffic accidents are reduced.

Description

technical field [0001] The invention relates to the technical field of traffic safety, in particular to a detection method for expressway lane-changing risks. Background technique [0002] In actual traffic scenarios, the high-speed lane change process involves factors such as the driver's subjective initiative, the mechanical performance of the vehicle, the random interference of the traffic environment, and road assembly conditions. Vehicle location and other information. Therefore, the process of changing lanes is very prone to human error, which leads to the occurrence of traffic accidents. Therefore, accurate and objective index evaluation and description are needed for the personalized discrimination method and safety evaluation of lane changing behavior. [0003] At present, the research focus on personalized driving characteristics is mainly focused on how to obtain an optimal lane-changing trajectory, ignoring the role played by the driver; a small number of relat...

Claims

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Application Information

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IPC IPC(8): G08G1/16G06F17/50
CPCG08G1/167G06F30/20
Inventor 程森林高文纵瑞雪王传海赵敏
Owner CHONGQING UNIV
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