Road–rail vehicle

A road-rail vehicle is a special kind of car that can travel on both regular roads and on train tracks. So, it's like a car and a train at the same time.

It has special wheels that can adjust and move from road mode to rail mode with just a switch. When on the road, it drives like a regular car, but when it needs to switch to the train tracks, it uses its special wheels.

These vehicles are usually used to transport heavy goods or machinery to places that aren't easily accessible by normal trucks or trains. With a road-rail vehicle, the goods can be transported directly from the source to the destination without the need for multiple transfers.

So, the road-rail vehicle is super versatile and can move goods from roads to train tracks and back again. It's like having two vehicles in one!