External systems used

This web app uses the following external systems to calculate the TPS level:

Table 1. External systems used

System	Wherefore?
INES	Base inventory of signals and their geographic location.
Infranet	Base topology of the railway network (trails and nodes).
E1002	The link between the signal and infranet. Enables the "next signal on the route" to be found.
AMDB	Database that is currently the master for linking the correct TPS level with the signal. Input data for main track TPS level comes from I-B as an Excel file. Manual corrections are also possible.