Question

why wider caps between railway line provided wider​

Answer 1

Answer:

The reason is that the rails expand in summer. The gap is provided to allow for this expansion. If no gap is left, the expansion in summer will cause the rails to bend sideways. this may result in a train accidents.

Explanation:

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Answer 2

Answer:

Gauge differences He decided on a wider gauge, to give greater stability, and the Great Western Railway adopted a gauge of 7 ft (2,134 mm), later eased to 7 ft 1⁄4 in (2,140 mm). This became known as broad gauge.