On Thu, 05 Feb 2015 22:37:19 +0000, "
wrote:

This should be interesting.

http://www.theguardian.com/cities/20...ndon-underline

I know that Seattle converted at least one tunnel, which was originally
to be for a light rail line, into a dedicated bus lane.


Well no, it was sort of the reverse of that: it was built originally
as a bus tunnel, but with tracks installed for future light-rail
usage. But when the 'lectric trains came into view, things weren't
going to work so it had to be modified

http://en.wikipedia.org/wiki/Downtown_Seattle_Transit_Tunnel