In message , at 13:04:13 on Sat,
31 Dec 2011, " remarked:
How long as the Heathrow Free Travel Area existed for busses?

The "Heathrow Freeflow" project started studying the idea in 1995, but
information is very thin on the ground about when the buses actually
began running.

This site has pictures of buses it says were acquired in 1995 for
Freeflow, but that may be a mistake based on the project start date,
given the lack of other material to confirm it:
http://www.countrybus.org/Dart/DEL.htm

Otherwise, the oldest references I can find anywhere (including news,
baa etc sites) is on usenet (uk.railway) in Sept 2004, and on a site
which says it was last updated in November 2003:

http://www.notrog.plus.com/busroutes...owfreezone.htm

and a reference elsewhere to hotel free shuttles being scrapped in ~2003
as a result of the Hotel Hoppa part of the Freeflow scheme.
--
Roland Perry