Calculation method for road speed limit value evaluation

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...

AI Technical Summary

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 speed limit value, and improve the efficiency of urban traffic operation, the present invention proposes a system that can consider road alignment, roadside interference, speed limit, vehicle performance and driver Calculation method of evaluation of road speed limit value based on various factors such as behavior

Images