Research on traffic layout based on social network analysis

In modern society, city´s traffic problems are always receiving great attention. How to carry on the traffic layout well is just one of important and rudimental subjects. This paper works over that subject based on a new approach of social network analysis (SNA), which absorbs the knowledge in social science. In the social network analysis, three measures (degree, closeness and betweenness) are introduced, which represent the amount of direct adjacent roads, probability of vehicles that come from all directions, and cut points where traffic flows are restricted separately. What´s more, basing on those three measures, the paper gives a fuzzy comprehensive evaluation method for the traffic layout, which can show the characteristics of traffic network and reveal the operation efficiency of the traffic. At last, through a practical case, some values about traffic layout based on social network analysis are approved.