Intersection design and control method for considering turning requirements of large vehicles

Abstract

The invention belongs to the fields of traffic safety and road design. Guidance is provided for the design that different main road flows, bypass flows and the proportions of turning vehicles and the proportions of large vehicles need to correspond to different special turning lanes, and the method adopts the technical scheme as follows: the intersection design and control method for considering turning requirements of large vehicles comprises the steps of: (1) enabling the large vehicles to pass through the intersection running to the upstream part for a distance along the mainline and then turning left, wherein the distance for running to the upstream part is a vehicle accumulation section for special lanes; (2) adopting two-phase signal control; (3) determining the set position of the turning lane and the length of the vehicle accumulation section; and (4) taking a special turning lane as a far leading turning lane in a branch traffic flow organization mode, namely separating the main turning traffic flow from branch straight left traffic flow through signal control in a no left turn or going straight mode adopted by a branch traffic organization. The method is mainly applied to the road design.

Description

technical field [0001] The invention belongs to the fields of traffic safety and road design, and in particular relates to an intersection design and control method considering the U-turn requirements of large vehicles. Background technique [0002] Port traffic is dominated by collection and distribution traffic, and the road traffic in the port area is dominated by large vehicles (container trucks, trailers, tank trucks, etc.). Due to the relatively simple road network structure in the port area and relatively few optional routes, there are often a large number of U-turn demands for large vehicles at some intersections or entrances and exits. Due to the large turning radius of large vehicles, large vehicles need to occupy a large space when making a U-turn. Usually, large vehicles must change lanes to the outer lane before approaching the U-turn exit, or occupy the adjacent lane to meet the requirements for a U-turn. This is an important reason for traffic jams and reduce...

AI Technical Summary

Problems solved by technology

[0007](1) The traditional method, although the U-turn lane is considered to be set up on the road section with a wide central divider, it does not take into account the geometric design, signal control and traffic of the intersection Organize and form a systematic design plan;

[0008] (2) Although the length of the storage section of the U-turn special lane has a key impact on the success of the application of the U-turn lane, the traditional method is more difficult to determine the length of the U-turn special lane. Fuzzy, mainly based on the perceptual experience of actual rectification, and no operable theoretical calculation method has been formed;

[0009](3) The traditional internal U-turn method at an intersection has less consideration for large vehicles, especially the lack of consideration of the turning characteristics of large vehicles, so it is not suitable for the U-turn requirements of large vehicles More cases;

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