Interesting reading. Much has been covered but I'm going to make a few observations!
One thing that always amuses me (maybe the wrong word but meant in a good way) is that people always come to the subject from their own particular interest group. Having said that, there are posters on here taking a broader perpective
Bikepackers want off-road, unsurfaced, long distance routes with bivvy spots. Tourers want quiet rideable surfaced, long distance routes with accommodation. MTBers want more and more extreme adreneline-rush trail centres. Family leisure riders want safe, easier riding in a controlled environment. And so on...
Trails like the new King Alfred's Way and the recent Great North Trail are a series of existing Rights of Way stitched together with maybe a few bits of Permissive Path added. A lot of work will go into their planning but not necessarily into their building. They are unlikely to be maintained beyond paths already maintained by Local Authorities and there will be sections overgrown, narrow, and muddy along with the better surfaced parts. There may be some waymarking of the trail but in these days of GPX that would be minimal.
An ITT is similar but promoted in a different way (although some will probably ITT the likes of KAW & GNT anyway - see previous posts, time is of the essence for some

) and can be ridden as a multi-day tour at the riders' own leisurely pace.
A Sustrans route or National Cycle Route will create new rights of way and paths and will take a lot more time and energy, raising finance and much greater use of statistics to sell to money-providers (the same statistics often successfully used against the creation of a trail by NIMBYs

)
Other types of routes I would describe as leisure or urban routes that a lot of local tourist boards and Local Authorities put out there.
Who uses all these routes? Sometimes I get the feeling there is very little cross-over between user groups; sometimes the only time this happens is when a 'serious cyclist' goes out with 'non-serious cyclist family members'. Which brings me neatly back to my first point, that people often look at things only from their own interest point of view.
Bringing the different interest groups to a common outcome would be like herding cats! From memory I have seen Open Spaces Society, Byways & Bridleways Trust, Land Access and Recreation Association, Country Landowners Association, International Mountain Bike Association (Trans Cambrian anyone?), CTC (Cycling UK), and many more pursuit-specific groups along with ROW Forums, Local Authorities, National Bodies. I say well done and thank you to anyone with the commitment and time to get properly involved
Just rambling, throwing thoughts out there
