Method for evaluating service level of plane signal intersection under mixed traffic environment

Abstract

The invention discloses a method for evaluating service level of a plane signal intersection under a mixed traffic environment in the field of urban road traffic planning and management. The method comprises the following steps: determining evaluation indexes of the service level of the plane signal intersection under the mixed traffic environment; calculating the weight of the plane signal intersection under the mixed traffic environment of each index by using an analytic hierarchy process; calculating central points and standard differences of five service levels of the plane signal intersection under the mixed traffic environment by using a fuzzy clustering method, and solving a membership function of each evaluation index; acquiring index data of each index under the mixed traffic environment; calculating and controlling the membership degree of each level of each index to form a single-factor evaluation matrix; and using the single-factor evaluation matrix and the index weight to carry out integrated evaluation for each index under each level, and determining the service level according to the maximum membership rule. The method integrally considers the influences of various traffic factors comprising non-motor vehicle and pedestrian on the plane signal intersection, and evaluates the service level of the plane signal intersection more accurately.

Description

technical field [0001] The invention belongs to the field of urban road traffic planning and management, and in particular relates to an evaluation method for the service level of a plane signalized intersection under a mixed traffic environment. Background technique [0002] Since the 1950s, traffic engineering researchers in some developed countries abroad have been committed to seeking good methods and models for measuring and evaluating the service quality of signalized intersections. After decades of hard work, a relatively independent theory has been formed. and methods. The United States Highway Capacity Manual (HCM) is the most representative and influential, and some countries and regions have carried out service level research based on it. The service level of signalized intersection proposed by the new version of HCM2000 takes the average control delay per vehicle as an index and divides it into six grades A-F; and determines the calculation method of control del...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to propose a method for evaluating the service level of signalized intersections in the existing mixed traffic environment, which fails to take into account the machi

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