I am certainly not disputing the above, but I can't see how this is a valid route, based on my understanding of the routing guide. Please can you explain how you worked this out, which map it's on etc? From what I can see Maidenhead to Feltham (Taking either Reading, or Slough as the routing point for Maidenhead) has to go on either maps LONDON, RG+WX, or WX[From Reading only]. The route you described doesn't appear valid on any of these. I'm guessing that it may be due to the walk, and maybe shortest route, but it would be great if you could explain this.
Thanks
Maidenhead is associated with Reading Group and Slough
Feltham is a routeing point.
Single fares from Maidenhead to Feltham, Any Permitted are:
£20.50 SDS
£15.90 CDS
Single fares from Reading to Feltham are:
£12 SDS
Fares from Slough to Feltham, Any Permitted, are:
£17.20 SDS
£13.60 CDS
Permitted mapped routes are:
Maidenhead - Reading - Bracknell - Feltham (mapped from Reading and Slough)
The shortest route according to the National Rail Timetable is:
(as above) 40.5 miles
and according to the routeing engine used by online booking engines 37.28 miles, via Acton Mainline - Kensington Olympia, even though this service no longer runs.
According to the electronic timetabling data, there is a walking link between Windsor & Eton Riverside and Windsor & Eton Central.
Maidenhead - Windsor & Eton Central is 8.5 miles.
Windsor & Eton Riverside - Feltham is 11 miles.
The total distance is 19.5 miles.
Since this is shorter than the shortest route by rail, it's permitted, albeit based on unpublished data determining what stations are and aren't linked.