The paper deals with the urban public transport in the city of Košice and the proposed solution to traffic congestion, which causes delays for public transport vehicles. The biggest problem is the fact that the volume of cars used for individual transport is increasing in the city, and so the resulting congestions cause time losses for public transport vehicles. In the research, traffic data was collected to determine the one bus line experiencing the greatest travel time delays and the locations where the biggest time losses occurred were identified. In order to reduce these travel time delays, solutions and their application were proposed, which could reduce time losses and ensure high-quality urban public transport.