Railways: Temperature
The question
To ask the Secretary of State for Transport, how many instances of heat-related speed restrictions on the rail network occurred in each of the last five years.
Answered by Keir Mather
Network Rail has recorded the following number of daily incidents of “Critical Rail Temperature speed-restriction incidents” as follows:
Financial Year | Heat speeds (Incident-days) |
2019/20 | 527 |
2020/21 | 575 |
2021/22 | 1080 |
2022/23 | 1622 |
2023/24 | 624 |
2024/25 | 332 |
2025/26 | 803 |
2026/27 YTD* to 1 July 2026 | 864 |
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