> The CWR is subject to compression loads due to temperature changes, which can cause buckling, or sharp lateral displacement. These phenomena are prevented usi

> The CWR is subject to compression loads due to temperature changes, which can cause buckling, or sharp lateral displacement. These phenomena are prevented using reinforced fastenings, sleepers and ballast. https://www.ejrcf.or.jp/jrtr/jrtr15/f38_tec.html https://www.ejrcf.or.jp/jrtr/jrtr15/f38_tec.html I found the above, but it doesn't say that much about buckling. I don't think they use slab tracks however. If buckling is the lateral movement of the track due to thermal expansion, I would imagine the old wooden sleepers would be much easier to pull sideways. Looking at the above link about slab tracks, they look far more secure and less likely to move sideways.