Use cases
Within the four railML® subschemas, use cases are utilised to describe, characterise, standardise and register potential scenarios. Specialists from various different countries define and review these use cases on an ongoing basis, with a view to further enhancing the railML® standard. Please also feel free to submit your own use case, if you do not find it in the lists below.
Interlocking module engineering data (IMED)
Interlocking modules have to be adapted to the infrastructure of the individual railway stations. This is realized by a customized set of engineering data reflecting some of the Infrastructure Manager's rules and functions to steer the behavior of the interlocking module for railway traffic performance and safety. In the engineering process, the data of physical objects are used to form also functional objects for operation by the interlocking module.
In this wiki article you can find an overview of the IMED use case.
Network Statement (NEST)
The Network Statement covers the requirements for access and use of the rail network (route network) of the infrastructure manager. It provides all the technical and operational information that is necessary for entities entitled to access the network and use track capacity to carry out their rail traffic services and operate their rollingstock on the rail network.
In this wiki article you can find an overview of the NEST use case.
Simulation (RSIM)
Infrastructure Managers simulate traffic on increasingly realistic models of their networks to design and test timetables. Alternative route-setting is essential to model behavior in case of disruptions. The simulation includes realistic interlocking routesetting behavior. Simulation models include time-to-set and time-to-release parameters, restrictions due to flank protection, number of blocks reserved by trains due to the nature of the signaling system, alternative routes, mutually exclusive routes, etc.
In this wiki article you can find an overview of the RSIM use case.
Schematic Track Plan (SCTP)
Infrastructure managers use maps for the visualization of their railway infrastructure. These maps comprise:
- Geographic maps
- Geoschematic maps/drawings
- Operational points have geodetic coordinates
- In between, the line layout is schematically interpolated
- Schematic drawings
- All elements have screen coordinates resulting from their complete schematic layout.
In this wiki article you can find an overview of the SCTP use case.
Further information on all other railML use cases can be found in the complete use case list, which has been published on the railML 3 wiki. The use case list provides an overview with descriptions and examples of all use cases, regardless of their status (released, under development, to be revised or submitted) and subschema.
If you have any questions, comments or concerns, please contact the Organisational Team.
If you would like to submit a use case, please download the Excel and/or Word files below. Simply complete the templates in accordance with the instructions provided and send the document via email to the Organisational Team.
Feel free to contact railML.org for further questions and remarks at any time.