"Helen Deborah Vecht" wrote in message
...
"Cast_Iron" typed



I would allow a little more than that, like 2½ mins. 2
stops per 5 mins
is easy eough to calculate.

Whilst better to allow more than less the 2 minutes is based on many
years
experience.

I suppose it depends on which parts of which lines you frequent. I live
on the outer fringes of the Northern Line, where 2½ mins is the correct
allowance. My other regular journey is Preston Road to Uxbridge on the
Met (10 stops) for which the 'average' journey time is given as 26 min.

Inner London stations are far closer so need less time.

My method works for the system as a whole, obviously there are local
variations.