Method and system for dynamically using hard shoulder during highway construction

Abstract

The invention relates to the technical field of traffic management and control, in particular to a hard shoulder dynamic use method and system in a highway construction period. The invention discloses a hard shoulder dynamic use system for a highway construction period. The hard shoulder dynamic use system comprises a data acquisition unit, a microscopic traffic simulation platform, a traffic jam identification unit and a hard shoulder control unit, according to the method, modeling is carried out by using a microscopic traffic simulation platform through collected historical traffic operation data and road basic information, related data analysis of highway traffic operation characteristics during construction is obtained, a traffic congestion road section during construction is predicted, and then real-time traffic operation data is collected; therefore, the open scheme of the hard shoulder of the traffic jam road section during the construction period is determined, real-time traffic control is realized, and the traffic jam condition during the construction period is relieved. According to the invention, the road congestion problem during the highway construction period is researched, and the highway congestion condition during the construction period is relieved.

Description

technical field [0001] The invention relates to the technical field of traffic management and control, in particular to a method and system for dynamically using hard shoulders during expressway construction. Background technique [0002] During the reconstruction and expansion construction period of the expressway, the traffic pressure is relatively high, the traffic flow is in an unstable state, and frequent traffic jams occur on the traffic-intensive road sections. Judging from the research content of traffic control during the expressway construction period, the current domestic research mainly focuses on the on-ramp control of the expressway and the speed limit control of the main line. [0003] At present, there are two types of on-ramp control research, from the point of view of regulation rate calculation methods, timing control and induction control. The adjustment rate of timing control is calculated and determined according to the existing traffic statistics and ...

AI Technical Summary

Problems solved by technology

[0008] At present, there are few studies on the dynamic use of hard shoulders to alleviate congestion during expressway construction. Domestic hard shoulder use generally adopts a fixed congestion time period to determine the opening of hard shoulders. For expressway construction, it is impossible to achieve intuitive Understand the traffic operation status during the construction period, and take measures to alleviate traffic congestion during the construction period by predicting the road sections that may cause congestion.

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