In message 70, Adrian
writes

Look at the popularity of the Oxford Tube coaches - no WAY are they getting
to central london in 50 mins at rush hour...

"Approx travel time 100mins, longer in rush hour". But - they're cheap.
£11/£13 return.

Also, look at the frequency - every 12-15 minutes, and services right
through the night, so there is no worry about the last train home.

Also, the stops by central line stations (e.g. Shepherd's Bush) provide
handy transfer and cut the time a little.

Also, highly competitive, with Oxford Espress chasing a similar route
and effectively increasing the frequency still further.

And even on the timing, a relative working in Oxford tells me that the
Oxford-Heathrow service is quicker than train to Paddington and out
again - and very much cheaper, of course.
--
Paul Terry