The buses that did the schools didn’t all run in during the day though. They had more buses kicking about during the middle of the day than necessary as some workings used to have long layovers in York, you’d regularly see buses parked up on Leeman Road as drivers took breaksThat’s not a surprise. Take out three school services, and in most operations, the PVR will fall by three….. That’s not really ‘tighter diagraming’ (incidentally not a term used in bus operations), just a reduction by three services with probably 1 PVR each!
Hence why I say it’s a combination of less schools and whatever you might want to call a more efficient use of vehicles