On 12/03/2011 17:56, NM wrote:

Four people traveling to work in London and returning home at the end
of the working day would find it cheaper to hire a minicab than use
the train.

And do they?

In congestion/tree-hugging terms, a car with four passengers all going
to and from the same place probably isn't a problem when compared with
all the cars containing just a driver.

--
Arthur Figgis Surrey, UK