摘要: |
传统城镇街道网络受地形、历史
发展格局等因素影响,呈现出小尺度、疏密
结构复杂等特征。本文选取“汶川地震”受
灾严重的羌峰村,模拟震后街道通行的“资
源”分布,进行交通网络需求与网络空间表
征、网络节点连接距离的关联性研究,并构
建街道网络的优化格局。研究结果表明:引
力场安全格局模型参数中,节点介中心值可
较好反映人们对最短路径的选择倾向和街
道网络流量的变化趋势,而街道空间句法的
中心性、最短路径中心性、激发引力场的安
全格局中心点介中心性均有高度一致性和可
辨性;通过引力场优化模型提出的避让策略
缓解了节点的拥堵程度,使整个街道网络呈
现出动态平衡的状态,形成了高效街道网络
的引力场安全格局。 |
关键词: 汶川地震 传统街道空间句法 最
短路径 引力场理论 路径安全格局 |
DOI:10.13791/j.cnki.hsfwest.20160213 |
分类号: |
基金项目:四川省哲学社会科学重点研究基地现代设计
与文化研究项目(MD15E026);国家自然科
学基金项目(51208428);四川省应用基础研
究计划项目(2013JY0038) |
|
Researches on Security Pattern of Gravitational Field Based on Traditional Urban Street Space Network |
FU Fei,LIU Gang
|
Abstract: |
Traditional urban street network shows small scale and complex density structure
features because of topography, history, development and other factors. This paper targets
on Qiangfeng Village, a humanistic style town surviving Wenchuan Earthquake, simulates
“resources” distribution of street network after the earthquake, analyses the relationship
between traffic network demand and network space representation, the connection distance
of network nodes, and creates optimization pattern of street network. In the model of
security pattern of gravitational field, the simulated results indicate that node intermediate
value can better reflect the selection preference of shortest distance and the variation trend
of street network traffic by analyzing the model parameters. However, the centrality of
the street space syntax and shortest distance, center and centrality of security pattern of
activating gravitational field both show high consistency and differentiability. Relieving the
congestion of the nodes make street network show a state of dynamic equilibrium and form
efficient security pattern of gravitational field of street network through avoidance strategy
provided by optimal model of gravity field. |
Key words: Wenchuan Earthquake Traditional Street Space Syntax the Shortest Path Gravitational Field Theory Path Planning Security Pattern |