Highway traffic congestion guidance decision-making method

Abstract

The invention relates to a highway traffic congestion guidance decision-making method. The highway traffic congestion guidance decision-making method comprises the following steps: A1. inputting the road segment information and OD demand traffic volume in a road network; A2. distributing the OD demand traffic volume to each road segment according to the road segment information by using the incremental allocation method, and obtaining the distribution result of each road segment; A3. obtaining the distributed traffic flow from the distribution result, and calculating the actual distributed traffic flow of each road segment according to the predicted evacuation flow rate and the distributed traffic flow; and A4. using the actual distribution traffic flow to replace the distribution trafficflow in the distribution result as the final distribution result, and making a guidance decision according to the final allocation result. The invention can further consider the dynamic evacuation factors of the traffic flow after the OD demand traffic volume is distributed, so that the distribution result is more consistent with the actual situation; and the predicted traffic flow can reflect stronger real-time performance, and a scientific and effective decision-making scheme is provided for the highway traffic congestion guidance on major holidays.

Description

technical field [0001] The invention relates to the technical field of highway traffic control, in particular to a decision-making method for expressway traffic congestion relief. Background technique [0002] The expressway carries huge traffic flow during major holidays, causing a large load on the road network. If the traffic flow is not properly channeled, traffic congestion is unavoidable. In addition, a large amount of traffic flow also increases the probability of traffic accidents. If the traffic flow upstream of the accident section is not timely diverted, the congestion situation of the accident section will worsen. [0003] In order to divert the traffic flow between OD (start and end points) of major holidays and large flows, and help highway travelers reach their destinations as smoothly as possible. The equilibrium state of the road network means that the travel time of each road segment used between the start and end points is equal, while the travel time of ...

AI Technical Summary

Problems solved by technology

However, the distribution results of the current user balance model for OD demand traffic volume cannot dynamically reflect the traffic status of each road section in the current road network, and the real-time performance is not strong. For the disposal of sudden traffic accidents on expressways, it is necessary to have a set of real-time Robust grooming scheme generation mechanism

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