Development the Methodology of Urban Area Transport Coherence Assessment

The present paper analyzes modern approaches to assessing the balance of urban infrastructure. The definition of transport coherence is given. The developed methodology of urban area transport coherence assessment is described. The method of localized assessment of transport provision has been tested in cities of various shapes and sizes: positive results and limits of the method applicability are analyzed by example of Volgograd, St. Petersburg, Novosibirsk, Moscow, Elista, Astrakhan, Uryupinsk and Kamyshin. The features of application of technologies and data of OSRM and OSM are highlighted. Checking options for calculating the coefficient of coherence for cells was held. Verification of the results obtained by the four methods of calculating the average is performed by comparing the estimates of connectedness with the length of roads in the corresponding cells. For this, a method for calculating the local density of the road network has been proposed. It is proposed to use a transport plasmograph of the territory for a visual demonstration of the coherence of space and the possibility of assessing its main structural features. The paper describes the method of creating a plasmograph and provides examples of the analysis with its help of the territory of Novosibirsk and St. Petersburg. Conclusions are drawn about the possibilities of formalizing the infrastructure integrity of cities based on an analysis of their transport coherence and suggest promising areas for further research using the established methods for analyzing other types of infrastructure, as well as comparative analysis of cities.