Public transport evacuation route planning method based on reversible lane and intersection conflict elimination

Abstract

The invention discloses a bus evacuation path planning method based on conflict elimination between reversible lanes and intersections, which specifically includes obtaining road network information within the evacuation area, dividing the roads into evacuation trunk roads and evacuation branch roads, and constructing nodes in the evacuation area. -Arc network model; based on the setting method of reversible lanes, establish the constraints for public traffic flow on evacuation trunk roads; eliminate the intersection conflict points of public traffic flows in different directions at road intersections, and establish the intersection conflict elimination of public traffic flow Constraints; taking the shortest total driving distance of all evacuated people as the objective function, a bus evacuation path planning model based on conflict elimination between reversible lanes and intersections is established; a genetic algorithm is selected to solve the model and the optimal bus evacuation path planning scheme is obtained. The method of the invention can significantly reduce the delay of public transportation vehicles at road sections and intersections, shorten the round-trip evacuation cycle time of public transportation vehicles, and improve the evacuation efficiency of public transportation.

Description

technical field [0001] The invention belongs to the field of urban road network optimization, in particular to a bus evacuation path planning method based on reversible lane and intersection conflict elimination. Background technique [0002] In recent years, there have been more and more sudden disasters around the world. All kinds of natural and man-made disasters have seriously threatened the lives and property safety of urban residents and restricted the sustainable development of social economy. In order to deal with various disasters and ensure the safety of life and property of urban residents, people put forward the concept of emergency evacuation. The core issue of emergency evacuation is how to transfer people in the disaster-affected area to a safe place in the fastest and safest way under the limited traffic capacity of road network infrastructure and within a limited safety time frame. [0003] Natural disasters occur frequently in my country, and as a developi...

AI Technical Summary

Problems solved by technology

[0004] In the actual evacuation situation, due to the limited number, the public transport vehicles need to go back and forth between the evacuation start and end points to evacuate people. If the public transport vehicles are mixed with other social vehicles on the road, there will be a certain driving delay. Parking to give way, there will be parking delays, which will greatly increase the evacuation round-trip time of the bus vehicles, reduce the efficiency of bus evacuation, and there are certain safety hazards

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