Traffic accident is an event on the road, caused by violation of traffic regulations, which involves at least one vehicle in motion with at least one person injured or killed, also if the person dies of car accident within 30 days or material damage is caused. The characteristic of traffic accidents is uneven distribution of traffic accidents on the road network, therefore it is necessary to identifyhazardous road locationsonthe road network in order to increase road users safety by repairing or eliminating of hazardous locations on the road network. Hazardous locations are locations/places on the road network or in the street, where it is more likely for traffic accident to happened, according to the other network elements. A large number of accidents occurs at the same locations, therefore they are classified according to certain criteria. In dissertation; concentration of traffic accidents and identification of hazardous road locations in Bjelovarsko-bilogorska County will be analyzed in two ways: segmentation of road network to fixed parts andsegmentation of road network by sliding window method. The fixed parts method implies that roads are divided into fixed parts of the selected length and all parts are the same length. Hazardous road locations are determined according to the number of accidents within the fixed parts of the road network. The sliding window method implies that hazardous road locations are detected by a framework of a certain length that has to be determined, which identifies areas with higher concentration of traffic accidents.In this research data used is on trafficaccidents that occurred in the area of Bjelovarsko-bilogorska County from 2010 to 2015. The purpose of this research is to get an relevant research results by indentifying hazardous locations in Bjelovarsko-bilogorska County and; based on the results; show the difference in the number of identified hazardous road locations in Bjelovarsko-bilogorska County, two different methods used for detection of hazardous locations on the road network (the fixed parts and the sliding window method).