Struggling with a plan at the moment, to try and avoid a nasty bus ride.
In this scenario, the regular route between A and B is shut, and there are buses instead. However there are train services from A to C, and from C to B. C is further away from A, than B is.
I know the NRCOT states the following:
Would a passenger be able to use a ticket from A to B, on the trains serving the route A to C to B, by reasoning of this being the shortest route by rail? The NRCOT only seems to mention trains, and the shortest route can only be calculated by the railways, not the roads.
I have summarised the above in a diagram, as shown below.

Thanks for all and any help!
In this scenario, the regular route between A and B is shut, and there are buses instead. However there are train services from A to C, and from C to B. C is further away from A, than B is.
I know the NRCOT states the following:
13.1.2.
...by any services (including any change of trains) over the shortest route which can be used by scheduled passenger services between the stations shown on your Ticket;...
Would a passenger be able to use a ticket from A to B, on the trains serving the route A to C to B, by reasoning of this being the shortest route by rail? The NRCOT only seems to mention trains, and the shortest route can only be calculated by the railways, not the roads.
I have summarised the above in a diagram, as shown below.

Thanks for all and any help!