I still reckon that rail engineering works should be done during the working week.

Because during the working week, most passengers are commuters, who know the system backwards, and can navigate round system failures without even bothering to wake up.

Whereas weekends and holidays are for occasional travellers, who've spent months planning their journey, and haven't the remotest clue what to do if they turn up at the station to find their train is cancelled.

https://www.bbc.co.uk/news/articles/cz0e18jjkx5o