"Colin McKenzie" wrote ...
Might be more sensible to electrify to at least Oxford, otherwise there
will still need to be an awful lot of diesel trains.

There's a fair chance of that, independently of crossrail.

But nice to think of a Cambridge- Oxford service, via Tottenham Court Road
["Alight Here for the University of London"!]
--

Andrew

"She plays the tuba.
It is the only instrument capable
of imitating a distress call."