Train tracks can buckle during periods of extreme heat when the steel rails expand. This can create dangerous alignment problems and, if severe and not corrected, may contribute to derailment risk.
The outlets explain the mechanism and potential consequences rather than a specific incident. As temperatures rise, rails can expand and introduce stress at joints and points along the route. If the expansion is not managed through rail design, maintenance practices, and operational controls, the track geometry can become distorted, affecting how trains run through the affected section.
One outlet focuses on the general physics of buckling and what it means for railway safety, while the other frames the issue with a direct question about whether buckling can lead to derailment. Both emphasize that rail buckling is a known hazard tied to weather extremes and that rail operators use procedures to monitor conditions and reduce risk.
