In message , at 14:34:44 on Tue, 12 Apr
2011, Mizter T remarked:
I assumed there wasn't room for all the cars to be queued up at one
or other terminal, and they'd be circulating around as a substitute
for somewhere to 'park' them.

I think that'd be an erroneous assumption - not least because the
battery capacity isn't unlimited.

If the cars don't have enough battery power to keep going all day, what
happens when they get busy?
--
Roland Perry