On Wed, 21 Dec 2011 09:18:48 -0000, Tim Streater
wrote:

In article ,
"Doctor Drivel" wrote:

"The Natural Philosopher" wrote in message
...
'Just a lot of people who never grew out of train sets: hugely
expensive way to move stuff around: roads much cheaper'
Trains are very cheap and FAST being on segregated tracks.

Until one breaks down. Then the interesting inability of trains to
overtake comes into play.


Just a bit more segregation - keep broken down trains separate from
working ones. So obvious...

--
Rod