Traffic accident influence range prediction method and device and computer storage medium
A technology of influence range and traffic accidents, which is applied in the transportation field, can solve the problems of low efficiency of accident influence range, lower operation efficiency of road sections, and increased delay at intersections, etc., and achieve the effect of reducing computational complexity and improving efficiency
Pending Publication Date: 2021-12-21
CENT SOUTH UNIV
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Benefits of technology
This patented technology helps researchers better identify potential hazards affecting roads during crashes or incidences caused by factors like weather conditions or construction work activities. By analyzing these data over different periods of time, they can make informed decisions about how best to respond accordingly. They also use queue lengths analysis techniques to calculate the severity of damage that may occur at intersections within certain areas around them. Overall, this technique provides technical benefits such as improved understanding of crash scenarios and reducing computationally complex calculations needed for accurate assessment purposes.
Problems solved by technology
This patented technical problem addressed in the patents relates to studying traffic safety issues during emergency situations where significant numbers of people may die within minutes if they don't get help before reaching critical points like school zones or work areas. Existing approaches such as queue models rely heavily upon data collected through computer networks and human observation, while advanced techniques include simulations and experiments involving simulation environments (Cambridge et al., 1997). These advancements aim towards better understanding and predictive tools for prevention efforts.
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[0046]The technical solutions of the present invention will be further elaborated below with reference to the accompanying drawings and specific embodiments of the description. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0047] see figure 1 , which is a method for predicting the influence range of a traffic accident provided by the embodiment of the present invention. The method for predicting the influence range of a traffic accident can be applied to the situation of predicting the influence range of a traffic accident on a road section, and t
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The embodiment of the invention discloses a traffic accident influence range prediction method and device and a computer storage medium, and the method comprises the steps: obtaining the average speed of vehicles in a road section when there is no accident, and obtaining a first average speed; obtaining the average speed of the vehicles on the road section when the accident occurs to obtain a second average speed; obtaining a speed ratio of the accident road section according to the first average speed and the second average speed; when the speed ratio meets a first threshold value, obtaining the average speed of the vehicle passing through the intersection in each direction of theupstream adjacent intersection, and determining the intersection delay value of the upstream adjacent intersection in each direction according to the average speed of the vehicle passing through the intersection in each direction of the upstream adjacent intersection; when the delay value of any intersection meets a second threshold value, determining a target lane; and determining the boundary position influenced by the accident based on the target lane, thereby determining the road section range influenced by the traffic accident by combining the speed ratio with the intersection delay value, and improving the efficiency of determining the specific influence range of the accident.
Description
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