Definition of Key terms

-  Traction refers to the action of pulling something over a surface especially a road or a track.

- A system which causes the propulsion of vehicle in which tractive or driving force is obtained from various devices such as diesel engine drives, steam engine drives on electric motors

- Rail is a type of transportation system that involves trains traveling on tracks or rails.

- It is a popular mode of transportation for both passengers and goods, and is used extensively around the world.

- A locomotive is a type of railway vehicle that is used to pull or push a train along a railway track. Locomotives can be powered by steam, diesel, or electricity, and they come in a variety of sizes and configurations depending on the type of railway service they are designed for.