| Van Train | A train with piggybacks or containers. |
| Vent Valve | A valve, attached to the brake system of a locomotive or car, that responds to an emergency rate of reduction of brake pipe pressure by locally venting the brake pipe at the locomotive and/or car to the atmosphere, thereby serially propagating the emergency application throughout the train. |
| Ventilated Box Car | Similar to an ordinary box car, but arranged for ventilation and suitable for the transportation of produce or other foodstuffs not needing refrigeration. |
| Via | By way of. |
| Voucher | A CSXT draft. |