Abstract
The paper focuses on the design of an operational concept for the Nymburk–Jičín regional line and its simulation using OpenTrack software, both under the current infrastructure conditions and with anticipated modernization, particularly in the area of security system. It includes an analysis of the current state of the line, the development of several operational concepts, their simulation, and proposed changes necessary for effective implementation. The model setup covers individual elements on the track, stations and interstation sections, including the creation of train routes and timetables. The outcome is a proposal for multiple operational concepts and associated measures for their implementation. The final chapter of the paper deals with proposals for measures that are necessary or suitable for the successful implementation of individual concepts.