In order to meet all business needs throughout the process, the central TTR IT Framework is set up in three layers:
- RU layer
Contains functions for RUs and applicants to place capacity requests
- IM layer
Contains functions for IMs/ABs to plan, coordinate, offer and allocate rail capacity
- Common layer
Contains functions to facilitate communication between the RU and IM layers
Each layer is composed of modules in which the necessary data is collected, and functions are provided. IMs and RUs will use their national systems to communicate with the respective modules through the messaging module using TAF/TAP messages. The individual modules will communicate with each other in the same way, also exchanging TAF/TAP messages.
Module in the RU Layer:
Path Request Management
Using the Path Request Management module, RUs will submit path requests to each IM/AB, using the data harmonised in the Train Harmonisation module. The Path Request Management module supports multi-annual requesting for Rolling Planning and offers functionalities for submitting observations and for path offer acceptance, train path linking etc.
Modules in the IM Layer:
TCR (Temporary Capacity Restrictions)
The TCR module collects all available information on planned TCRs in one dedicated space. This helps IMs/ABs to coordinate at international level and decrease the negative influence of TCRs on train operation. RUs are then given the opportunity to comment on TCRs in a consultation phase before the TCRs are published in their final version.
This module aids in capacity modelling, planning and product development. The Capacity Hub module collects all data from the IMs/ABs (available capacity, capacity bands and TCRs) and RUs (capacity need announcements) and provides an overview of available capacity and TCRs in an early stage of planning. The system intelligently and automatically detects capacity conflicts and alerts affected companies when something is changed during capacity planning. Based on this process the capacity products are published and subsequently used in the capacity requesting process.
The Capacity Broker module combines data from the TCR and Capacity Hub modules with the capacity need announcements from RUs. By means of an algorithm, the system checks available capacity against the IMs’/ABs’ national systems, taking into account TCRs, and distributes it according to RUs’ requests. The results are then forwarded for final processing to the Path Management module.
The Path Management module ensures that international path coordination is done in a harmonised format by all involved parties. It offers functionalities to elaborate paths (including post-processing), as well as provide and harmonise offers for Annual and Rolling Planning Requests. IMs/ABs will check and finalise the path proposed by the Capacity Broker module and provide their offer to the RUs via the Path Request Management module. In general, the Path Management module has all functionalities of today’s PCS system.
Modules in the common layer:
The Messaging module facilitates communication between RNE’s central systems and the external systems of IMs/ABs and RUs. The messaging module also allows external systems of IMs/ABs and RUs to communicate with each other, functioning as a router. This module is completely based on the European standards of TAF/TAP TSI message exchange.