Urban centrality measuring method

Abstract

The invention relates to a town centrality measurement method. The method comprises the following steps: establishing a weighted connected graph about a town; screening development starting points; developing nodes; if the selected line does not exist or the weight value is not 0 and the point set is not greater than the null point set, assigning the development order to the line newly added intothe null line set; if the size of the line set is not equal to that of the empty line set, developing again; otherwise, calculating the centrality of the points. Compared with the prior art, the measurement precision can be improved; the one-sidedness of an attraction amount method and a dominant flow method is eliminated, and the calculation result is more referenceable.

Description

technical field [0001] The invention relates to the technical field of urban system planning, in particular to a method for measuring urban centrality. Background technique [0002] The measurement of urban centrality plays a vital role in regional coordinated development, rational allocation of resources, and scientific planning of urban systems. Therefore, accurate and efficient measurement of urban centrality has always been a necessary research content in the field of regional planning. In recent years, the development and transformation of transportation and communication technologies, business organizations, and global governance methods have transformed the research on urban centrality from a static attribute perspective to a fluid interaction perspective. Compared with the static and macro evaluation methods of towns and cities using statistical data, the research based on the interaction perspective can more realistically simulate the connection between towns, so th...

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Problems solved by technology

[0006] 1. In the process of measuring urban centrality, each connection and its importance generated in the process of urban interaction are not considered or ignored, which affects the measurement accuracy;

[0007] 2. Because the attraction quantity method in the prior art only conducts one-sided research from the attainable cost, the attraction quantity method cannot distinguish the connection volume although it can reach towns with poor costs;

[0008] 3. Since the dominant flow method in the prior art only studies one-sidedly from the connection volume, although the dominant flow method can connect towns with poor volume, it cannot distinguish the reachable cost

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