On Wed, 16 Jun 2010, Andy wrote:

On 16 June, 11:01, wrote:
On Wed, 16 Jun 2010 10:49:25 +0100

"Paul Scott" wrote:
It is full 'UK main line 'size - (best make that clear before people start
asking for double decker trains that won't fit any of the extensions over NR
or into Heathrow)...

There is always talk talk talk of increasing loading gauge , yet whenever
any new track is built or rebuilt its always to the UK loading gauge.
Talk about lack of foresight.

The central London tunnels will be built to an increased loading gauge.
The planned running tunnel diameter of 6.2m is nearly as large as the
6.3m RER tunnels in Paris and certainly big enough for most continental
stock.

Any idea what that corresponds to in either W6/8/12 etc terms or UIC
A/B/C? And whether other constraints for those gauges (or kinematic
envelopes or whatever we're supposed to call them now), like radius, will
be met?

tom

--
wit, speed, and dressing well