 The European Union's transportation system is designed to provide high levels of mobility, efficiency, speed and safety. To achieve this goal, it must connect different transportation modes and ensure that they work together effectively. In order to evaluate the quality of rail services, we need to consider how well the network provides access to destinations and how frequently trains run. We propose a methodology for assessing the constructed timetable based on passenger traffic data. We then apply this methodology to a case study of a Slovakian railway network. This article was authored by Joseph Gasparic, Yarmor Soroky, Lomar Pesany and others.