LATA
In some TRUST messages, the Line And Terminal Address (LATA) of the inputting terminal is shown, usually when the event (movement or cancellation) is manually reported, or is reported through TOPS.
LATAs are in the format AANNNNN:
- AA is a two-character string which indicates the type of terminal and its sequence number
- NNNNN is the TOPS Responsibility Area (TRA) that the user is within
LATA types
| Type | Description |
|---|---|
| C | Network Rail (Route Control) |
| D | Network Rail |
| F | Network Rail |
| J | Freight Operating Company |
| K | Freight Operating Company |
| L | Network Rail |
| N | Freight Operating Company |
| Q | Network Rail |
| R | Network Rail (Route Control) |
| W | Interfaces to TOPS |
| X | Area Freight Centre (AFC) |
TRAs
When TOPS was introduced, a TRA covered a geographical area. Since privatisation of the rail industry, TRAs are now operator-centric, rather than geography-centric.
| STANOX | Description |
|---|---|
| 07360 | Mossend Down Yard |
| 15400 | Tees New Yard |
| 23430 | Doncaster Up Decoy |
| 23450 | Doncaster ANG |
| 23460 | Doncaster Coal Yard |
| 35550 | Warrington Arpley Sidings |
| 35560 | Warrington EWS |
| 35990 | Warrington |
| 42159 | Crewe Basford Hall |
| 42960 | Crewe Parcels |
| 52900 | GB Railfreight |
| 76470 | Alexandra Dock |
| 82100 | Westbury Down Yard |
| 82230 | Westbury EWS |
| 82240 | Westbury Aggregates |
| 89735 | Dollands Moor |