Personnel evacuation method for municipal traffic under calamity outburst surroundings

Abstract

The invention relates to a crowd evacuation method for urban traffic in case of an unexpected disaster, comprising the following steps: (1) acquisition of the information related to the crowd evacuation; (2) construction of the road network data structure: an extended forward star structure which can store the related date into the memory and construct the data structure is utilized to store the road network data and represent turn restrictions of junctions and the passenger flow rate and the length of every road; (3) determination of the location of the disaster and modification of the road network data structure; (4) the crowd are evacuated by using the constructed data structure according to the maximum flow improved algorithm based on the dynamic network flow; (5)the change of the evacuation ratio and the evacuation paths are displayed with time according to the recorded data during the evacuation process. The invention has the advantages that: the crowd evacuation method provides a reasonable resource distribution method which makes the evacuation closer to an actual urban crowd evacuation in case of a sudden disaster; meanwhile, the evacuation method can treat real-time sudden events and evacuates the crowd based on a plurality of disaster locations and sanctuaries.

Description

technical field [0001] The invention belongs to the technical field of modern traffic safety, and mainly realizes a crowd evacuation method facing urban traffic under a disaster emergency environment. Background technique [0002] When the current city is facing the threat of disaster, it lacks an effective and rapid unified personnel evacuation. The invention provides an efficient, reliable, safe and intelligent plan planning method for the urban traffic environment under the concurrent threat of multiple disasters, solves crowd evacuation scheduling under the multi-disaster environment, and speeds up the response speed to disasters. It has broad application prospects in traffic command, emergency rescue, national defense and combat readiness, public safety, medical rescue, fire rescue and other fields. [0003] At present, some methods of personnel evacuation planning for disasters are based on past experience to plan personnel evacuation for disasters. Using experience ...

AI Technical Summary

Problems solved by technology

[0005] The main problem of the existing methods is to guide the evacuation of people indoors, especially in buildings, for a single static disaster. These methods are aimed at a single disaster and a static disaster, without considering the dynamics of the disaster. Changes, and did not take into account the allocation of resources, the allocation of resources on a macro basis, but for individual guidance

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