Sundays were kept outside the working week to reduce costs by management many years ago. The reduced service pattern is generally enough to find adequate volunteers.
Move Sunday into the working week,
- and the railway must then increase traincrew staffing by 17%.
It's cheaper to keep Sunday as overtime, unless we have a spare pile of cash lying about to hire 17% more staff which in the long run, would cost 3-4 times the cost of a Sunday overtime.
The main dispute I've noticed recently regarding not working Sundays, is at a FirstGroup firm, a dispute which is over £3ish a day in ticket commission... self inflicted by management who've just pocketed £72.1M profits (01/03/22), despite large swathes of missing / deleted / covid-cancelled trains in 2021. I would OLR the whole lot, and get rid of the incompetent, greedy contractors for failing to run trains, then look at the Sunday situation - could it be negotiated as contractual overtime, say a minimum 6 per year?
Wouldn't read too much into the Dirty Torygraph. Perhaps a pile of money buried in the Channel Islands tax haven Brecqhou under the Telegraph owners (Barclay Brothers) beds could pay for the extra staff needed.