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Highway exit ramp area safety evaluation method

A highway and safety evaluation technology, applied in the field of intelligent transportation, can solve the problems of being too subjective, difficult to collect conflicting data, ignoring randomness, etc., to achieve the effect of increasing flexibility, saving human and financial resources, and simple and efficient data acquisition.

Active Publication Date: 2018-06-01
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention relates to an improved system that uses drones or other flying devices (drones) equipped with sensors to gather road conditions from different directions while avoiding deployment costs associated therewith. This makes it faster and cheaper than traditional methods like radar systems because they are less expensive but still effective at detecting interference patterns on roads. Additionally, this technology can help identify potential collisions based upon their type and location within specific areas around them. Overall, these improvements make better ways to manage traffic congestion without relying solely on human operators' observations.

Problems solved by technology

This patents describes different ways to measure road conditions during high speed travel by analyzing vehicle behavior patterns or driving behaviors. These techniques can be useful when developing new roads without affecting their performance due to factors like heavy use over time. Additionally, these techniques aimed at improving traffic safety should provide more accurate results than current standards.

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  • Highway exit ramp area safety evaluation method
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  • Highway exit ramp area safety evaluation method

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Embodiment Construction

[0070] The present invention will be further described below in conjunction with the accompanying drawings.

[0071] The technical problem that this embodiment mainly solves is:

[0072] 1. Analyze the types of traffic conflicts based on the collected traffic conflict data, and obtain three main scenarios: the intersection conflict between the lane-changing vehicle and the following vehicle, the rear-end collision between the lane-changing vehicle and the following vehicle after the lane-changing vehicle completes, and the lane-changing vehicle Intersection conflict with the vehicle in front;

[0073] 2. Use the driving simulator to establish the traffic conflict scene in the highway ramp area, which can collect the driver's reaction time and emergency braking deceleration data, and further establish the driver's reaction time and emergency braking deceleration in different scenarios probability density distribution;

[0074] 3. For each simulated conflict, the corresponding...

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Abstract

The invention discloses a highway exit ramp area safety evaluation method comprising the following steps: analyzing types of traffic conflicts according to gathered traffic conflict data, using a driving simulator to build a traffic conflict scene in a highway ramp area, gathering response time of the driver and emergency brake deceleration data, and further building response times of the driver under different scenes and the emergency brake deceleration probability density distribution; aiming at each simulation conflict, deducing the corresponding accident formation probability according tothe specific scene; carrying out scene classification according to real happening conditions for each specific lane changing conflict, and using the accident probability calculating method of the corresponding scene to solve the accident probability; accumulating the conflict accident probability, obtaining the accident prediction number in an observation period, or obtaining the accident prediction number in a specific time through conversion.

Description

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Claims

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Application Information

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Owner SOUTHEAST UNIV