On 29 May, 23:28, wrote:
In article
,

(lonelytraveller) wrote:
On 27 May, 00:38, Bruce wrote:
However, what would kill the idea stone dead is that .... it is
only one tunnel
The maps on Crossrail's planning brief show the Post Office railway
having two tunnels.

Doesn't some of the running line have two small tunnels while other parts
and the stations have larger single tunnels.

--
Colin Rosenstiel

I'm not sure about the exact layout of the stations, but those bits
I'd assume would need to be rebuilt a bit anyway for non-conflicting
passenger ingress / egress.