| Abbreviation | Definition |
|---|---|
| LTI | Lavalle Transportation Inc |
| LTI | Lifestyle Transportation Inc |
| LTI | Luxury Touring Injection |
| LTIP | Local Transportation Improvement Program |
| LTIP | Local Transportation Improvements Program |
| LTL | Less Than Truckload |
| LTL | Local Transit Line |
| LTM | Local Traffic Manager |
| LTMF | Logistics Transportation and Merchandizing Fee |
| LTMF | Logistics Transportation Merchandise Factor |
| LTO | Land Transportation Office [Republic of the Philippines] |
| LTPP | Long-Term Pavement Performance |
| LTRC | Louisiana Transportation Research Center |
| LTSA | Land Transport Safety Authority |
| LTSS | Local Transit Systems Subcommittee |
| LTU | Luft Transport Unternahmer |
| LTV | Left Turning Velocity |
| LTV | Light Transport Vehicle |
| LTV | Loaded Transit Van |
| LU | London Underground |