(14 Nov 2018, 9:41 pm)S830OFT wrote Isn't it the X10 that serves the slip road northbound? And I think what he means is if the X9 is cancelled and the X10 does the X9 route aswell what happens to the passengers waiting at the slip road?
That is the exact scenario he has described, just with the route numbers the wrong way around. Although if they don't walk around, it pretty much suggests bad luck and you've got to wait an extra half an hour for the next bus to come.