On Wed, 10 Dec 2008 11:02:46 -0000, "Recliner"
wrote:

Would all branches of the Undergorund pass that test? For example, I
doubt that Amersham and Chesham services achieve that frequency.

Nor does the Circle Line half the time. Nor (timetabled) most of
LOROL.

Neil

--
Neil Williams
Put my first name before the at to reply.