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This doesn't happen in
much hotter countries, does it?

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Well, although it doesn't
often make big news over here,

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railways in countries with
very hot summers have the same

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issues we do.

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Their rails may be stressed
for higher temperatures,

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but that's because they
typically have long, very hot

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summers, while our summers tend to
be much less predictable. Even then,

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if they have hotter days
than their infrastructure is

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designed for, they have to
respond in the same way we do.

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That's why you may have
heard about rails in Spain,

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Italy and Switzerland being
painted white to keep the steel

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cool and slower trains
to prevent buckling.