The Bus Main Line extraction Method based on Modified Line Betweenness Centrality

Abstract:

Based on the theory of complex network, the paper uses ArcGIS second development program and Ucinet software for transit GIS network analysis, and proposes a new planning method to filter out bus main lines with a modified line betweenness centrality index. Taking the bus network of Pudong New District in Shanghai as an example, the paper further conducts a different analysis between the new method and the actual planning scenario, and illustrates the feasibility and rationality of the new method from the aspects of 4 indicators, including the coincidence degree of the network, non-linear coefficient, station spacing, and passenger flow stability. According to three cases in the process of bus main lines planning, the paper discusses the adaptability of the new method and concludes that about 65% of the bus main lines in planning scenario can be extracted by this new method. The new method is practical and universal because of the advanced data extraction based on GIS model of network，which can be widely-used as an efficient quantitative method in the bus main line planning.