In message , at
20:05:08 on Thu, 26 Aug 2004, Martin Underwood
remarked:
I think "what is the cheapest fare from HH to Newark?" should
elicit the cheapest possible fare even if that involves multiple tickets.

I think this is explicitly excluded from the equation.

Although some "cheaper" combinations of ticket are easy to predict, it
would be difficult to train people to investigate all possibilities,
given that (a) the railways don't have this computerised and (b) most
employees have trouble selling simple one-leg tickets.
--
Roland Perry