城市道路网的度相关性研究

基金项目: 国家基础科学人才培养基金资助项目(J1103409)

详细信息

Degree Correlation of Urban Street Networks

¹School of Resource and Environmental Sciences,Wuhan University,Wuhan 430079,China;²Key Laboratory of Geographic Information System,Ministry of Education,Wuhan University,Wuhan 430079,China

Funds: The National Science Foundation for Fostering Talents in Basic Research of the National Natural Science Foundationof China,No.J1103409.

摘要: 目的研究了基于stroke相交关系表示的道路网对偶图中的节点度的相关性。运用同配性系数,对美国40个城市道路网进行了实验,发现这些道路网既是同配的,又有异配的。同配性道路网具有易流通性和抗破坏性,这一点在城市规划领域具有潜在应用。本研究与前人的研究结论不同,对可能的原因进行了讨论。
- 城市道路网 /
- 拓扑分析 /
- stroke /
- 对偶图 /
- 度 /
- 同配性系数
Abstract: Objective In this paper,we use the assortative coefficient to study the degree correlation of urbanstreet networks as represented by stroke intersections.It is found that some street networks demon-strate an assortative mixing pattern and others demonstrate disassortative mining pattern.The assor-tative networks would percolate easily and are resilient to breaks.This demonstrates potential forgeneral applicability to urban planning.Our conclusions are opposite to previous work and possiblereasons are discussed.
- road network /
- topological analysis /
- stroke /
- dual graph /
- degree /
- assortative coefficient