In London you have:
The route is indicated on the ground by a variety of signs and waymarks, which are very similar to those of the London Loop. In open spaces they consist mostly of a simple white disc, mounted on wooden posts and containing a directional arrow with the Big Ben logo in blue and text in green (but note that in Richmond black replaces green due to local conservation area considerations). A word of warning: the arrow's direction may not be clear until you are close up. It is easy to assume that it points ahead, but it may turn - look closely before continuing.
On streets the posts are replaced by larger aluminium signs strapped to lampposts and other street furniture, and additionally carry a walking man symbol. On link routes to stations the word 'link' is incorporated into the logo. At major focal points you will also meet tall green and white signposts that give distances to three points in either direction. Some of these locations may also have the big, round-topped information boards.
And of course, they should be contiguous.
The best I can find is this, which helps me if I am a planner, but not a pedestrian. At Bike Walk Twin Cities, which feels like , let's be honest, Bike Bike Twin Cities, the "maps" link has links to 8 different bike maps on their maps page, only one of which is really only for hiking too, and that is for outstate. The Walking maps page leads me to the useless City of Minneapolis page, the route planner from Metro Transit, and two Skyway maps.
Maybe there is some other resource I am missing. Maybe someone has a grant to do this. Maybe someone had a grant to do this, but didn't do it.