| Abbreviation | Definition |
|---|---|
| PTBA | Public Transportation Benefit Area |
| PTC | Personal Transfer Capsules |
| PTC | Philadelphia Transportation Company |
| PTC | Planned Transportation Corridor |
| PTC | Platform Twinring Containerized |
| PTC | Power Training Craft |
| PTC | Private Transportation Company |
| PTC | Proportional Torque Control |
| PTDM | Parking and Transportation Demand Management |
| PTE | Party To Exemption |
| PTE | Passenger Tire Equivalent |
| PTE | Passenger Transport Executive |
| PTEG | Passenger Transport Executive Group |
| PTF | Peak Traffic Flow |
| PTFN | Preliminary Texas Freight Network |
| PTI | Pennsylvania Transportation Institute |
| PTI | Professional Transportation Inc |
| PTIM | Public Transport Infrastructure Manual |
| PTIS | Public Transportation Infrastructure Study |
| PTM | Porsche Traction Management |