Dave Arquati ) gurgled happily, sounding much like they were
saying :

Chesham to Chigwell is 2 hrs 2 mins (with walking speed set to slow).

For these types of journeys, the waiting time is also important. At a
gated station, you touch in, then wait - at somewhere in the far-flung
reaches of the Tube like Amersham, you could potentially wait 20 minutes
for a train (similarly at Baker Street in the other direction).

Chesham-to-Chigwell would include a wait to change from the Chesham Shuttle
at Chalfont & Latimer, too - apart from the small number of thru trains per
day, at peak times.