What is the purpose of the V-shaped rail between two straight rails on a railway? - Quora

Why isn't there a differential in a train? What happens when a train takes a turn? - Quora

Why do American diesel locomotives usually have just one front cabin while European ones have symmetrical cabins on each end? - Quora

Why do train tracks carry an electrical voltage between them? - Quora

Why are railroad ties used on train bridges? Why not fasten the tracks directly to the bridge structure? - Quora

What is the purpose of the V-shaped rail between two straight rails on a railway? - Quora

How does a train get from one track to another? - Quora

When the train track split into two tracks, how does the train operator make the train go into the first track or the second track? - Quora

What kind of differential mechanism is used in trains? - Quora

What is your favorite NYC subway line and why? - Quora

How do trains turn? - Quora

How are the rails of a railroad track bent to make the track curve? - Quora