What's your point,
@steveindenmark ? I find RidewithGPS a rather useful planning tool whence e-files can be exported.
Comments on that first day "
https://www.plotaroute.com/route/156282":
Killer stretches along A30 dual carriageway. Conversely a fair few minor wiggly roads and a slow, wiggly cycle path up from Dunmere. I like the Granite Way finish into OKEhampton. Maybe it's two days (in which case, wiggly and minor is fine).
When designing a route, one needs to settle on a philosophy and then do one's best to stick to it.
‘Type of road’ choice: Avoid English trunk roads and dual carriageways completely and mostly avoid English A roads. Avoid using narrow minor roads. Use cyclepaths if they're 'good' and go in right direction.
Urgency of travel: The imperative of route/road choice allowing the necessary (ie planned) rate of progress to be achieved.
Directness: The fastest route may not be a straight line but the greater the distance from the straight line, the longer the route is likely to be in distance.
Climbing: Should the route ‘seek out’ hills for the sake of interesting terrain? If the fastest route between two points is sought, what is Naismith’s rule for cycling? Ie how much extra distance is it worth cycling to avoid, say, 100m climb? Suggest this will depend on the cyclist’s climbing ability and also the weight of load being carried. I worked on 1:25 ie worth doing an extra 2.5km to avoid 100m climb.
Descending: Attractive if downhills are gentle, without tight bends, and not narrow. Steeper downhills waste valuable potential energy without the attractive conversion to the kinetic kind.
