Mapped Routes Question

[b0b]

Let's say I have a origin station with associated routeing points A & B;
and a destination station is routeing point C;
and lets say the fares check rule allows A-C and B-C;

On tracing through maps A-C, if I switch between maps at B, is that still a valid route?

and more generally on a route A-C, can you pass through B?

(this is all theoretical - there might not be any like this!)

 

[OwlMan]

Providingyou use the maps in the correct order and do not return to one already used, and also you do not double back through a station (unless permitted by other rules) you can select any route between the appropiate routeing points. It does not matter what routeing points you pass through.

Is this what you mean?
Bedworth to Peterborough
Bedworth has 2 Routeing points - Coventry & Nuneaton
Both pass the fares rule.
From Nuneaton there is only one map (BP) that gives the obvious route Nuneaton - Leicester - Oakham - Peterborough.
From Coventry there are two map combinations available (BP+EM & BP+WM).
BP+EM is invalid as it requires travelling back from Coventry through Bedworth to Nuneaton.
BP+WM is valid and involves going from Coventry to Birmingham - Nuneaton - Leicester etc - passing through the other valid routeing point.

Peter

 

[b0b]

collybs - that's a great example, thanks!

 

[John @ home]

BP+EM is invalid as it requires travelling back from Coventry through Bedworth to Nuneaton.

I don't agree that the Routeing Guide restricts travel in a way that makes this invalid.

As collybs says, Coventry passes the fares check for a Bedworth - Peterborough journey, so it is an appropriate Routeing Point for that journey.

Step 5 of the Routeing Guide Instructions states that If one station is a routeing point and the other one is a related station, the permitted route is the shortest route to the routeing point plus the permitted routes between routeing points. That is the position for this journey where Peterborough is a Routeing Point and Coventry and Nuneaton are both appropriate Routeing points for Bedworth for the journey.

There are limitations on doubling back on the part of the journey between the origin and its associated Routeing Point - the shortest route must be used. There are also limitations on doubling back on the part of the journey between the Routeing Points - Step 7 states that the route is via any route on that map from the first routeing point to the final routeing point without doubling back.

But I can't find any limitation on doubling back where that is created by putting the two parts together to create, in this instance, a Bedworth - Coventry - Bedworth - Nuneaton - Leicester - Peterborough route. In the absence of a limitation, this appears to be a Permitted Route.

This has limited value for a Bedworth - Peterborough journey but is useful, and is used, for an Edinburgh Park - Glasgow Queen Street journey. The most convenient journey is often

• Edinburgh Park - Haymarket (a member of Edinburgh Group Routeing Point), followed by
• Haymarket - Glasgow Queen Street (which doubles back through Edinburgh Park).

This route is recommended by both the Atos Origin and thetrainline families of booking engines.

 

[OwlMan]

John

I think this discussion has been had before

Section F states

FINDING APPROPRIATE ROUTEING POINTS
Any routeing point can be used, provided it does not


use routes not permitted for the journey


cause doubling back (passing through the same station twice between origin
and destination)


make the journey double back through the origin or destination station unless
the fare permits (for example Ealing Broadway to Swindon via London).


allow travel by a route which does not satisfy the fare-check rule. This rule is
explained in the box below.

As you and I know the routeing guide is not clear



Peter