Why is there a gap between each rail on the railway?
The rail must provide a continuous, smooth, and least resistant rolling surface for the wheel. In electrified railway or automatic block section, rail can also be used as track circuit.
Rail is the main component of railway track. Its function is to guide the wheel of the rolling stock, to bear the great pressure of the wheel and to deliver it to the sleeper.
In summer, the rails are heated and inflated, leaving gaps to prevent accidents. In winter, the tracks freeze and leave gaps to prevent broken rails, and the gap can act as a general solution.
