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Every railway in the world is a combination from the same parts. Here I explain what those parts are, what they do and why they might not always agree.

To most, the track is something that carries the train that takes them to their destination, like work or the airport. But this does the track a great disservice. A railway track is an engineering system, comprising of multiple components, each with their own specific function.

As rail temperatures rise, so do the forces acting within the track. The question is not just how hot the weather gets, but whether the track system is built, maintained and managed in a way that can cope with it. In this article, I break down how that works in practice and why it matters.