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[1]张凌煊,帅斌,张士行.考虑街区尺寸的应急救援路径选择仿真研究[J].中国安全生产科学技术,2020,16(1):105-110.[doi:10.11731/j.issn.1673-193x.2020.01.017]
　ZHANG Lingxuan,SHUAI Bin,ZHANG Shihang.Simulation study on path selection of emergency rescue considering block size[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(1):105-110.[doi:10.11731/j.issn.1673-193x.2020.01.017]
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考虑街区尺寸的应急救援路径选择仿真研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
16
期数:
2020年1期
页码:
105-110
栏目:
职业安全卫生管理与技术
出版日期:
2020-01-30

文章信息/Info

Title:
Simulation study on path selection of emergency rescue considering block size
文章编号:
1673-193X(2020)-01-0105-06
作者:
张凌煊; 帅斌; 张士行
（西南交通大学 交通运输与物流学院，四川 成都 611306）
Author(s):
ZHANG Lingxuan;  SHUAI Bin;  ZHANG Shihang
(School of Transport and Logistics,Southwest Jiaotong University,Chengdu Sichuan 611306,China)
关键词:
城市交通安全; 应急救援; 街区尺寸; 路径选择; 交通性能
Keywords:
urban traffic safety;  emergency rescue;  block size;  path selection;  traffic performance
分类号:
X948
DOI:
10.11731/j.issn.1673-193x.2020.01.017
文献标志码:
A
摘要:
为分析街区尺寸对应急救援车辆行程时间的影响，基于小（120 m）、中（264 m）、大（440 m）3种典型街区尺寸，将救援车辆行程时间分为街区内、外2部分，以总行程时间最小为目标，构建基于背景流量水平的救援车辆路径选择仿真模型。设置4种救援场景，分别求解各救援场景在不同街区尺寸下的最短路径时间、冗余度及复杂度。结果表明：街区尺寸对街区内、外部救援时间均有影响，而前者在救援路径距离较短、街区尺寸较大的路网中占据较大比例（可达50%以上）；救援路径包含路段的流量较小时，中、大街区尺寸路网表现类似，而高流量下大尺寸具备更优的救援时间；街区尺寸越小，救援路径冗余度与复杂度均越大。
Abstract:
In order to study the influence of block size on the travel time of emergency rescue vehicles,based on three typical block sizes of small (120 m),medium (264 m) and large (440 m),the travel time of rescue vehicle was divided into two parts of inside block and outside block,and a simulation model on the path selection of rescue vehicle based on the background traffic flow level was established by taking the minimum total travel time as the object.Four types of rescue scenarios were set,and the shortest path time,redundancy and complexity of each rescue scenario under different block sizes were calculated respectively.The results showed that the block size had the influence on the rescue time of both inside block and outside block,and the former occupied the larger proportion (up to above 50%) in the road network with shorter rescue path distance and larger block size.When the traffic flow of the road section contained in the rescue path was smaller,the presentation of road network with medium and large block size was similar,while the large block size had better rescue time under the large traffic flow.The smaller the block size,the higher the redundancy and complexity of rescue path.

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备注/Memo

备注/Memo:
收稿日期： 2019-10-02
作者简介： 张凌煊，博士研究生，主要研究方向为城市交通规划、交通网络建模与优化、交通信息控制与管理等。
通信作者： 帅斌，博士，教授，主要研究方向为交通运输经济、交通与物流规划、交通运输政策与宏观决策等。
更新日期/Last Update: 2020-03-02