Trivia: Bus routes that use larger capacity vehicles in evenings or on Sundays

[Martin2012]

Are there many examples of routes which are normally allocated lower capacity vehicles (e.g. single deckers) during the main part of the day when the services is busier but then use larger capacity vehicles (e.g. double deckers) in the evenings and/or on Sundays when usage is lower?

First Bristol seem to have done this for a while on the 36 Centre to St Annes service. There have been a number of spells over the last year where the service has used Streetlites on Monday to Saturday but it almost always uses a decker on Sunday. First also previously had spells of doing it on the old 5 (Broadmead to Downend), 78 (Bristol to Thornbury) and Y4 (Bristol to Yate) routes.

 

[Roger1973]

Reading Buses route 29 (Lower Caversham) is usually worked by a midi-bus, weekday daytimes it looks as though routes 27 / 29 can be done with a single bus.

I have seen a double decker on it on Sundays often enough to suggest that's scheduled rather than a one-off substitution (they are unlikely to run out of midi-buses on Sundays), when 27 doesn't run and 29 is about a 20 minute round trip that runs hourly. I assume it inter-works with something else (possibly Caversham routes?) and that the marginal higher cost per mile (and maybe higher cost per hour for the drivers) is more than offset by saving a lot of unproductive driver time.

There are probably similar examples elsewhere.

 

[JD2168]

All First services on Sunday & Bank Holiday Monday in Sheffield are allocated deckers, even mostly single deck routes like the 56.