| Abbreviation | Definition |
|---|---|
| TPF | Transaction Processing Facility |
| TPF | Transportation Pooled Fund |
| TPG | The Proving Grounds |
| TPI | Tuned Port Injection |
| TPI | Twin Point Injection |
| TPIS | Transportation Passenger Information System |
| TPK | Turnpike |
| TPKE | Turnpike |
| TPM | Transport Packaging Material |
| TPM | Transportation Performance Management |
| TPMS | Transit Performance Monitoring System |
| TPMS | Turbulence Plot Message System |
| TPNE | Transportation Planning And Execution |
| TPO | Transportation Planning Organization |
| TPOM | Transportation Partnership on Mobility |
| TPPS | Transportation Project Prioritization Study |
| TPR | Transportation Planning Rule |
| TPRG | Transportation Policy Research Group |
| TPS | Throttle Position Sensor |
| TPS | Transit Preferential Streets |