System Abbreviations and Acronyms

1. SWOOP
   South Western Ontariororthophotography Project
2. SWORDS
   Special Weapons Observation Remote Direct-Action System
3. SWPA
   Southwest Pacific Area
4. SWR
   Short Welded Rail
5. SWR
   Station Worhing Rules
6. SYC
   Sandy Creek Rr
7. SYN
   No Expansion
8. TAAG
   Trains At A Glance
9. TACACS
   Terminal Access Controller Access Control System
10. TBLR
    Tezpore-Balipaza Light Railway
11. TBTR
    Through Bridge Timber Renewal
12. Tc.D
    Tuscumbia, Courtland & Decatur
13. TCS
    Twin Compression System
14. TD&B
    Toledo, Delphos & Burlington
15. TDC
    Tennessee Departmentof Conservation
16. TDM
    Tasmania Departmentof Mines
17. TDOT
    Tennessee Departmentof Transportation
18. TE
    Zone Telecommunications Engineer
19. TE
    Topographical Engineer
20. TELCO
    Tata Engineering Ant Locomotive Co.

Last updated: January 4, 2020 — Total entries: 1,214