Calculation method for road speed limit value evaluation

A calculation method and speed limit value technology, applied in special data processing applications, geometric CAD, etc., can solve problems such as V85 data distortion, unreasonable evaluation of road speed limit values, and harsh measurement conditions

Active Publication Date: 2021-06-08
CENT SOUTH UNIV
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  • Claims
  • Application Information

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Problems solved by technology

This method has problems such as heavy workload in the field, harsh measurement conditions, and V85 data distortion caused by the driver's current speed limit.
[0004] In order to solve the problem that the evaluation of the current road speed limit value is not reasonable enough, adjust and optimize the road ...

Method used

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  • Calculation method for road speed limit value evaluation
  • Calculation method for road speed limit value evaluation
  • Calculation method for road speed limit value evaluation

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Embodiment Construction

[0058] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0059] Such as figure 1 As shown, a calculation method for road speed limit evaluation, including a linear index influence module, a roadside interference module, a speed limit module, a vehicle performance module, a driver behavior module, and an integrated calculation module. A calculation method for road speed limit value evaluation, comprising the following calculation steps.

[0060] a) According to the real-time vehicle position k and instantaneous speed v on the road, output linear index influence module, roadside interference module, and vehicle speed limit module, and comprehensively simulate to calculate whether the driver will operate the vehicle to accelerate or decelerate at the next moment.

[0061] b) The next behavior of operating the vehicle outputs the driver behavior module and the vehicle performance module simula...

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Abstract

The invention discloses a calculation method for road speed limit value evaluation. The calculation method is particularly suitable for speed limit value evaluation of expressways, highways and urban roads. The system comprises a linear index influence module, a roadside interference module, a vehicle speed limiting module, a vehicle performance module, a driver behavior module and an integrated calculation module. According to the calculation method, factors such as road alignment indexes, roadside interference factors, speed limiting factors, vehicle performance and driver behaviors are combined, a mathematical calculation method among people, environment and vehicle speed is established, the condition of driving speed change of a driver on a road can be simulated only by inputting calculation parameters into a computer, and a running speed result of the road can be obtained. According to the calculation method, a theoretical basis is provided for evaluation of the existing road speed limit value, the calculation method is simple and clear in principle, scientific and efficient, the road speed limit value can be effectively adjusted and optimized, the urban traffic operation efficiency is improved, and the efficiency and accuracy of road speed limit value evaluation work are improved.

Description

technical field [0001] The invention relates to the technical field of road traffic design, in particular to a calculation method for evaluation of road speed limit values, which is applicable to the evaluation of speed limit values ​​of expressways, highways and urban roads. Background technique [0002] With the continuous acceleration of my country's urbanization development process, the problem of urban traffic congestion is becoming more and more serious, and the traffic efficiency of residents' travel is low. In recent years, in order to tap the potential of urban traffic, the traffic authorities of Chengdu, Chongqing and other cities have re-evaluated the speed limit values ​​of some urban roads, and adjusted and optimized the speed limit values ​​of roads according to the evaluation results. [0003] According to the "Road Traffic Signs and Markings" (GB5768-2018) specification, the road speed limit value needs to be evaluated in combination with the design speed and...

Claims

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Application Information

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IPC IPC(8): G06F30/15G06F30/18
CPCG06F30/15G06F30/18
Inventor 汪优陈宝光王振宇赵晓薇梁绍华廖艳陈义辉
Owner CENT SOUTH UNIV
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