In message
-sept
ember.org, at 03:34:37 on Wed, 11 Oct 2017, Recliner
remarked:

The project had been paused due to a budget shortfall caused by Mayor of
London Sadiq Khan's flagship "fares freeze" policy., the assembly's Tories
claim.

Or perhaps it's been caused by the electorate voting in someone with
that promise in their manifesto. (And in fact only a very watered-down
version actually being implemented).
--
Roland Perry