Mountainous area double-lane highway hidden danger section traffic conflict risk dynamic evaluation method

A traffic conflict and dynamic evaluation technology, applied in logic circuits, pulse technology, complex mathematical operations, etc., can solve problems that are difficult to implement and not very operable, and achieve simple models, risk warnings, and strong operability Effect

Active Publication Date: 2021-03-16
BROADVISION ENG CONSULTANTS
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the inventors found that most of these methods are theoretical researches, the model design is too idealized, it is difficult to realize in actual situations, and the operability in actual traffic management is not very strong

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  • Mountainous area double-lane highway hidden danger section traffic conflict risk dynamic evaluation method
  • Mountainous area double-lane highway hidden danger section traffic conflict risk dynamic evaluation method
  • Mountainous area double-lane highway hidden danger section traffic conflict risk dynamic evaluation method

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Embodiment Construction

[0057] The present invention will be further described in detail below in conjunction with the examples.

[0058] Those skilled in the art will understand that the following examples are only for illustrating the present invention and should not be considered as limiting the scope of the present invention. If no specific technique or condition is indicated in the examples, it shall be carried out according to the technique or condition described in the literature in this field or according to the product specification. The materials or equipment used are not indicated by the manufacturer, and they are all conventional products that can be obtained through purchase.

[0059] The technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention (the data collected by the typical mountainous two-lane road in Yunnan Province—Yuan Shuang Highway). Obvi...

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Abstract

The invention relates to a mountainous area double-lane highway hidden danger road section traffic conflict risk dynamic evaluation method, which comprises the following steps: firstly, obtaining vehicle driving track data and traffic flow data of a current implementation road section, calculating according to the track data to obtain a serious conflict discrimination threshold, and extracting thetraffic flow data 5 minutes before the occurrence moment of a serious traffic conflict; selecting mountainous area double-lane road traffic conflict risk dynamic possibility evaluation indexes and conflict severity evaluation indexes, establishing a road conflict risk evaluation model, and determining conflict risk possibility and conflict severity grades; and combining conflict risk possibilitygrading and conflict severity grading to construct a mountainous area double-lane highway traffic conflict risk dynamic evaluation comprehensive matrix, and determining the conflict risk grade of eachtraffic conflict of the current implementation road section. According to the method, the collected high-precision space-time trajectory data and traffic flow data are used for dynamically evaluatingthe traffic conflict risk of the mountainous area double-lane road, the data are easy to obtain, and the constructed model has relatively good prediction precision.

Description

technical field [0001] The invention belongs to the technical field of road traffic safety, and in particular relates to a dynamic evaluation method for traffic conflict risks on hidden road sections of two-lane highways in mountainous areas. Background technique [0002] Facing the severe traffic safety situation of mountainous roads, it has become an urgent task to effectively improve the overall safety level of mountainous roads through the research on mountainous road safety assessment. At present, the improvement of traffic safety mainly focuses on the places with a significantly higher possibility of traffic accidents, that is, the rectification of accident-prone spots, which belongs to post-event remedial measures. However, there are still some hidden dangers of traffic accidents in the road network. It may be because of the hidden dangers of traffic accidents in the design and operation stages of the road environment, etc., which are likely to turn into accident-pron...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06F17/18G06K9/62G06N7/02G06Q50/26
CPCG06Q10/06393G06Q10/0635G06F17/18G06N7/02G06Q50/26G06F18/23213
Inventor 杨文臣房锐胡澄宇谢世坤田毕江周燕宁苏宇李薇岳松
Owner BROADVISION ENG CONSULTANTS
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