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JordanRulz t1_jb15ngs wrote

Reply to comment by ihateusedusernames in If you’re ever annoyed by service changes because of “Track Repair”, never forget the hard work behind them that keeps our subway alive. by beechcraft10

wasn't there some issue with being unable to install CWR on the elevated tracks due to thermal expansion/contraction issues?

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ihateusedusernames t1_jb1boic wrote

Was there? I don't know. I believe there are stretches of continuous welded rail on the line near me, if not the entire line.

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cleverpunnyname t1_jb1x9hm wrote

The issue would be the ties. Continuous rail is all over the world in all sorts of climates undergoing freeze thaw cycles without issue. But on the NE corridor Amtrak lines for example they had to relayre-lay rail bed and replace ties with concrete to install it. Idk if that was just overlapping upgrades or if one required the other

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