| Abbreviation | Definition |
|---|---|
| TSBC | Transportation Safety Board of Canada |
| TSC | Transportable Storage Canister |
| TSC | Two Stroke Cycle |
| TSCS | Transportation System Capability Study |
| TSD | The Speed Demons |
| TSD | Transportation Service District |
| TSDB | Terrorist Screening Database |
| TSDC | Transportation Secure Data Center |
| TSDC | Transportation System Development Charge |
| TSDC | Transportation System Development Charges |
| TSE | Traffic Safety Engineering |
| TSG | Transportation Solutions Group |
| TSI | Turbo Sport Intercooled |
| TSI | Turbo Sport Issue |
| TSI | Turn Signal Intakes |
| TSI | Two Speed Idle |
| TSIH | Transportation Site Impact Handbook |
| TSJ | Taxi San Jose |
| TSL | Traffic Signal Lights (or Lamp) |
| TSL | Transportation Science and Logistics |