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Allocation method of emergency rescue facilities based on urban road network reliability

An emergency rescue and urban road network technology, applied in the traffic control system of road vehicles, traffic flow detection, instruments, etc., can solve problems such as randomness of urban road network conditions and road reliability without consideration

Inactive Publication Date: 2011-12-14
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the randomness of urban road network conditions and road reliability are not considered in current traffic network design and evaluation models.
In setting the layout model of emergency rescue facilities, it is often assumed that the road network is completely reliable, which is not in line with the actual situation

Method used

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  • Allocation method of emergency rescue facilities based on urban road network reliability
  • Allocation method of emergency rescue facilities based on urban road network reliability
  • Allocation method of emergency rescue facilities based on urban road network reliability

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Embodiment

[0113] Considering 12 blocks in a certain area, the local government plans to select p=5 locations from 7 candidate facility locations (A, B, ..., G) to set up emergency rescue facilities. Assuming that the demand of each block is concentrated in the center of the block (such as the street office), the driving distance d from the candidate facility to the center of the block ij The population of each block is shown in Table 1. The local government requires at least one facility to serve the block with less than 40,000 people, at least two facilities to serve the block with 40,000 to 100,000 people, and at least three facilities to serve the block with more than 100,000 people , ie q 5 =q 6 =q 8 =1,q 1 =q 4 =q 7 =q 10 =q 12 =2,q 2 =q 3 =q 9 =q 11 = 3.. Here, the population of each block is used as the weight w of the block i .

[0114] Table 1 The driving distance (Min) from candidate facilities to the center of the block and the population of each block

[0115...

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Abstract

The invention discloses a configuration method of emergency rescue facilities based on the reliability of the urban road network, which comprises the following steps: firstly, using the basic information of the urban road network, using the deterministic user balance method to allocate traffic, and then using the traffic simulation method to obtain the urban road The traffic flow information is used to establish the reliability of the road section; then a Dijkstra algorithm using the road section reliability is introduced to obtain the corrected distance matrix between urban road network nodes; finally, a multi-objective decision-making model for the location of emergency rescue facilities is established, and emergency rescue is determined according to different objectives The layout of the facilities in the city; the present invention considers the randomness of the urban road network and the multi-objective requirements when selecting the location of the rescue facilities, so that the layout of the emergency rescue facilities is more in line with the needs of the actual situation.

Description

technical field [0001] The invention relates to a configuration method of emergency rescue facilities based on the reliability of urban road network, specifically, based on the reliability of road section capacity and a multi-objective decision-making model, a method for determining the optimal layout of emergency rescue facilities in the city, involving traffic and urban planning technology . Background technique [0002] The urban traffic road network is the basic facility to maintain the functions of the modern city and the regional economy. The normal operation of the urban road network has an important impact on the city. However, in real life, the normal operation of traffic network functions is affected by many factors, including both natural factors (such as earthquakes, floods, volcanic eruptions, mudslides, etc.) and human factors (such as road maintenance, ramp closures, on-street parking, Traffic accidents, terrorist activities, etc.), these factors have caused ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/00G08G1/01
Inventor 程琳刘政威
Owner SOUTHEAST UNIV
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