What Is Continuous Welded Rail and How Is It Maintained?
Continuous welded rail (CWR) is railway track where individual rail lengths have been welded together into a single long section, eliminating the joints that older jointed track has every 13 metres.
It is quieter, smoother, and lasts longer than jointed track. But it also builds up thermal stress as temperature changes, which needs to be managed carefully to prevent buckling or cracking. This guide explains what CWR is, how it behaves differently from jointed track, what neutral temperature means, and how Australian networks maintain it.