Am trying to use the routing guide and have got a bit stuck.
How do you identify permitted routes if the fare for all routeing points to your destination is greater than the fare from your origin station?
Cheers
The first question I would ask is "do you need to do a fares check?", as it is only if you are not sure which routeing point to use that you should perform this task.
As an example, let us take Swinton (Manchester) as a starting station. Swinton has associated routeing points of Wigan, Bolton, and Salford Crescent, though Bolton can be ignored as you cannot get to it without going to one of the other two first. If the journey was to Leeds, the obvious appropriate routeing point is Salford Crescent, so no fares check is required. If the journey is to Liverpool, most would consider Wigan to be the obvious appropriate routeing point, but some might think Salford Crescent is reasonable too, and so the fares check should be used to determine if either Salford Crescent or Wigan are appropriate routeing points.
If none of the routeing points pass a fares check it is impossible to draw a mapped route.