thanks for that. I find it confusing! Can someone please explain it to me in
laymans terms.

wrote in message
ups.com...

4sub wrote:
"Raymond Kirk" wrote in message
...
At Brixton and Walthamstow Central stations there are no buffers, but
the
track appears to wander into the distance.
At brixton there appears to be a curve.

Where do these tracks go?
How long is the length of the exess at Brixton and Walthamstow?


Have a butchers 'ere

http://www.trainweb.org/tubeprune/

Interesting site. This section should help the OP.

http://www.trainweb.org/tubeprune/vi...20diagrams.htm

--
gordon