ROAD NETWORK TOPOLOGY AND ACCIDENTS IN HUNGARIAN CITIES

The paper aims at the investigation of the connection between accidents and the characteristics of urban street networks. There are several methods for the analysis of the street network in the cities. Possible indicators of the road network topology are the ratio of the type of the junctions, average distance between the junctions, and the connectivity and continuity of streets. In this paper cities and zones with different road networks were investigated comparing accident data. The main features of these zones are the location in the cities, the types of the buildings and the land use. Four categories of accidents were analyzed according to the participant: motor vehicle accident, pedestrian accident, bike accident and scooter accident. The results of the ratio and characteristics of the accidents are visualized in diagrams and cartograms. The data comes from accident analysis software and the results of the investigations were made using ESRI ArcGIS software.