Railway Consultancy Abbreviations and Acronyms

1. TESCO
   Technical Service Company
2. TFM
   Trackside Functional Module
3. TGM
   Transport Gateway Metro
4. TIIS
   Train Infrastructure Interface Specification
5. TIMI
   Telecommunications Maintenance Instruction
6. TIPS
   Telecommunications Installation and Procurement Service
7. TKM
   Tonne Kilometres
8. TL
   Through Line
9. TO
   Teaq Organiser
10. TO
    Taansport Operator
11. TOC
    Test On Completion
12. TOHD
    Tops Operations Help Desk
13. TOOS
    Taken Out of Service
14. TORUS
    Transportoperations Rapid Update System
15. TOS
    Taken Out of Service
16. TOWS
    Train Operated Warning System
17. TPPP
    Transport Policies and Programme Package
18. TPWSSA
    Tpws Sponsor's Agwnt
19. TQI
    Track Quality Index
20. TQSUM
    Track Quality Summary

Last updated: January 4, 2020 — Total entries: 685