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Tracks were laid to prevent the wagons wheels sinking into soft ground or struggling on uneven ground and therefore the resistance of wheels on a smooth rail was far less than on muddy or uneven ground so a single horse was able to move more weight.
Steel rails laid and pinned down on ties embedded in gravel so that trains may run on them.
rails
Yes.
It wooden run.
The width apart of rail tracks are set to the gauge of the trains and carriages that are allowed to run on those tracks. They are kept in position by wooden sleepers, though concrete sleepers are often used nowadays.
this is because wooden sleepers increase the area on which pressure of train is to be exerted.Thus pressure is not concentrated on a single point densely.therefore if there more area there would be less pressure and train will run smoothly.As we know P=1/A.
Subway trains, like other trains, run on rails.
this is because sleepers increase the area on which pressure of train is to be exerted.Thus pressure is not concentrated on a single point densely.therefore if there more area there would be less pressure and train will run smoothly
Rails, usually made out of steel.
Locomotive
It is a tram (UK) or a streetcar (USA). They run on metal rails set level into the road surface, and they run on electricity from overhead cables.