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DETERMINATION OF TRANSPORT ACCESSIBILITY IN THE FORMATION OF TOURIST ROUTES USING QGIS AND GRASS GIS

The creation of modern tourist products contributes to the attractiveness of our country in the market of tourist services. Transport accessibility is an important aspect for creating tourism products. This study considers the algorithm for determining transport accessibility for the projection of tourist travel routes, based on the use of geographic information technologies. Transport accessibility is determined by collecting and filtering data and subsequent creation of isochron maps, which show the time distance when moving a particular mode of transport along the lines of the road network from points of interest. Attractions of Ternopil region were chosen as such points of interest for tourists. The paper uses open OSM data on tourist facilities and the road network. Data preparation was performed using PostgreSQL software. When performing the study, the QGIS program was used, in which data processing was performed. Spatial analysis is performed in the spatial information processing environment GRASS GIS; data processing modules or GRASS GIS plug-ins are used. The proposed algorithm allows forming a database of tourist facilities, transport routes, to define more accurately existing tourist routes, to create new ones. As a test in the course of the study, the route of the tour of Ternopil was designed, in the construction of which an isochron map was used. Spatial analysis helps to better determine the path of the tourist tour and its duration. 