Input data for the article Investigation of Railway Network Capacity by Means of Dynamic Flows (Nikolayzik, Maus and Nießen). The dataset contains two files for each analysed scenario (complete network, upper subnetwork, lower subnetwork). The first file ("input_data_infrastructure_{scenario}.csv") contains information on the investigated infrastructure:For each station the number of available tracks is listed and for the lines information on whether it is a single- or double-track line, the average minimum headway time, hourly capacity limits and travel times for the different train types are included. The information is thereby split into two parts, depending on whether the core network or the linking lines are described. The second file ("input_data_trains_{scenario}.csv") contains the trains that can generally be scheduled in the considered network, including information on the corresponding train type, departure frequencies, their routes and a minimally allowed dwell time. Further, the file "input_data_route_conflicts_nodes.py" contains the information on which routes inside a station exclude each other as is described in the article.