A GIS BASED URBAN TRANSPORT SYSTEM ANALYSIS AND RANKING IN

Abstract. Fixing the accessibility is a standard issue of transport analysis, which can be of interest to many socioeconomic applications. In the paper we propose and discuss accessibility and other indicators based urban transport system analysis and GIS (geographic information systems) calculation method for indicating problematic transportation zones in Vilnius city. The main parameter is time based accessibility from/to the central part of Vilnius and other transportation zones in the city. Created GIS application computes the ranks for transportation zones of Vilnius city according accessibility and Vilnius statistics in transportation zones (street network density in city zones, number of working places, number of equipped parking places, number of attractive objects in transportation zones). The GIS decision support system is based on two calculation methods Topsis (Technique for Order Preference by Similarity to Ideal Solution) and SAW (Simple Additive Weighting). Application of transportation zones analysis improves quality of basic environment statistics and fills many data gaps related to urban statistics, providing information to decision makers and the general public concerning key factors determining the state of urban transportation environment. This paper outlines criteria and models used in Vilnius to develop urban transportation indicators and the reasons why the selected indicators represent a first important step to achieve a comprehensive system of indicators of urban transportation sustainability in Vilnius city. This model could be integrated to systems of urban transport planning and sustainable development planning