Most cities (especially in Central and Eastern Europe) focus on improving the road network, which aims to improve the efficiency of motor vehicle traffic and minimize congestion. Most existing tools for analysing the effectiveness of urban transport networks do not correctly analyse the impact of walking and cycling on network performance. Instead, they focus exclusively on the results of motor vehicle transport and exclude pedestrians and cyclists, or incorporate them as factors that interfere with the traffic of motor vehicles. It is therefore necessary to introduce solutions that will, on the one hand, reduce congestion and, on the other, improve the safety and travel quality of vulnerable road users. One of the tasks that need to be done to improve pedestrian conditions is to determine the relationship between pedestrian and vehicle traffic. An example of the application of microscopic models in the study of delays of traffic participants (road users) is presented in this paper. These analyses do not exhaust the test issues but are only a prelude to further research that will be run, among others, within the FLOW Project framework (HORIZON 2020).