In urban mixed traffic zones, urban rail-bound transport is heavily influenced by the road traffic. Accordingly, the urban mixed traffic also impacts on the results of capacity research of
rail-bound systems. Capacity research is one of the most important methods for evaluation of the relationship between the capacity and the quality of operation in an investigated railway infrastructure
network. For the urban mixed traffic zones, two developed approaches in this research can be used to carry out capacity research with consideration of the road traffic influences on urban rail-bound transport.
As a result of the stochastic influences of road traffic on urban rail-bound transport, the waiting time function including the recommended area of traffic flow will be adapted to mixed traffic
conditions more plausibly. In addition, an algorithm for modeling an event-driven system is developed for preliminary determining the results of capacity research. Therefore, the operating performance
for urban rail-bound transport with road traffic influences can be determined and evaluated.