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Why don't railroads need expansion joints?
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this post was submitted on 01 Jan 2025
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That isn't really true though. He never talked about 'sun kink' which is a thing. Apparently mostly due to poor ties and bedding.
There's a neat discussion I found on some forum
So it appears the topic wasn't able to be covered fully in 30 minutes, let alone 5. But I do agree he adds a lot of fluff and it gets annoying. The thermite manufacturing guy needs a channel.
Yeah in Melbourne several years back we had a heat wave that fucked up a bunch of the train tracks.
Isn't the thunk-thunk as you're travelling the wheels of the carriage passing over the expansion joints?.
You should probably watch the video. It's informative and answers your question.
Nowadays there are no thermal expansion joints, the rails are welded. Any thunk thunk left is at switches.