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Why small gaps are left in between two adjacent pieces of railway track?
Wiki User
∙ 7y ago
These gaps are thermal expansion joints, they prevent the rails from buckling when they get hot in the summer. Although modern welded rail only has these gaps every mile or so to reduce the vibration and noise of the wheel crossing them (instead of every 40 feet on unwelded rail).
All construction must provide for thermal expansion (e.g. bridges have thermal expansion joints, concrete road paving has thermal expansion grooves).
Wiki User
∙ 7y ago
Wiki User
∙ 7y agoThe gaps are there to allow for expansion of the rails during hot weather.
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