In message , at 13:32:34 on Thu, 1 May
2014, tim..... remarked:
It doesn't say what marshalling is. A strict grammatical meaning would
simply be people making sure that no-one queue jumps. It wouldn't
include going out of their way to put customers for like destinations
in the same cab

In the past it's been very clear that it involves finding people to
share cabs to similar destinations.
--
Roland Perry