When a train passes over track, the rail has to do two things at the same time. It transfers vertical load down into the sleeper and ballast and also forces along its length — from temperature change, traction and braking. Those forces do not stop at the end of a rail. They must pass through whatever joins one rail length to the next. Every time two rails are joined, it creates an area where the behaviour of the track changes. These joins affect: How forces are transferred Ho

When two rails meet, the way they’re joined can shape the strength, longevity, and safety of an entire track section.

Discover how rail joint gaps prevent buckles and breaks by managing thermal expansion—and why just a few millimetres can derail a train.

Railway tracks endure extreme forces every single day. From the relentless passage of freight trains to the wear-and-tear of tight...