In message , at 00:47:46 on Sat, 3
Jun 2006, Mark Brader remarked:
Now, the Guinness Book people have a set of rules for visiting all
stations, which include the requirement that to get from one station
to another one must either walk or use scheduled public transport.
Lynch could not construct an itinerary using that rule, so he or she
decided to additionally be allowed the use of a bicycle. And since
folding bikes can be carried without restriction, that was the trick.

and...

He or she also decided that it was reasonable to exclude the Watford
north curve

There are many ways that you can construct new rule sets. At one extreme
you could allow any means of transport over road sections (including
friends with cars, taxis etc), and at the other you could allow only
walking [I think that forbidding even walking would make the challenge
impossible].

For people to be able to compare your "achievement" with that of others,
unless you are the first to do something [1], then you really need to
attempt a recognised task [2], and abide by a recognised rule set, which
the Guinness one is.

[1] For example, has anyone taken a one-week British Rail Rover ticket
and attempted to cover that entire network?

[2] Is "doing all the routes" (leaving aside the Watford North issue for
a moment), rather than "visiting all the stations" really different
enough? If there's really two hours spare, what about adding the DLR to
the challenge?
--
Roland Perry