Length optimization method for express lane intersection area

Abstract

The invention discloses a length optimization method for an express lane intersection area, comprising steps of (1) determining driving behavior parameters under an ice and snow condition, (2) simulating the express lane intersection area in the ice and snow condition, (3), performing variation tendency analysis on time occupation ratio of the express lane intersection area in the ice and snow condition, (4) establishing a time occupation ratio regression model of the express lane intersection area in the ice-and-snow condition, and (5) determining the length of the intersection area of the urban express lane. The length optimization method for the express lane intersection area considers affects of snowy road conditions like snow, ice plates, ice films, etc on the operation of the express lane intersection area, obtains the intersection area service levels under various ice and snow conditions, and can help people to choose the appropriate intersection area length according to the snow and ice condition in the road construction and design.

Description

technical field [0001] The invention belongs to the technical field of urban expressway design, in particular to a method for optimizing the length of an expressway weaving area. Background technique [0002] The weaving area in the urban expressway is affected by the traffic flow in and out of the expressway, which is the most unstable part of the traffic flow in the entire expressway, and is prone to congestion. However, in some areas where the temperature is low for a long time and the snowfall is heavy, most of the northeast, north, and northwest of China belong to the winter snow zone, and the snow accumulation period lasts for 3 to 4 months. However, under ice and snow conditions, drivers' driving behavior will change due to poorer road conditions, and as a result, the service level of the expressway weaving area will drop sharply. Snowfall has a huge impact on the road traffic system, and even blocks traffic in severe cases, leading to traffic accidents. [0003] In...

AI Technical Summary

Problems solved by technology

[0004] Reasonably determining the length of the weaving area of ​​urban expressways in ice and snow areas is the key to scientifically setting the entrances and exits of expressways. From the current research situation, no one has studied the length setting method of the weaving area of ​​urban expressways in ice and snow areas. There is no related design method

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