Hi, On Sat, Jul 5, 2014 at 11:29 PM, Russ Nelson <[email protected]> wrote: > Paul Norman writes: > > It's not impossible - but the devil is, as always, in the details. You > > can obviously limit it to only cases where there is a motorway with a > > motorway_link branching off and no left/right tags, but it's not just that. > > Thinking about all the exit_to's that I've added, the vast majority of > them could be converted without changing the value from an exit_to on > a motorway_junction into a destination on the associated > motorway_link.
My next step would be to identify and count the number of 'simple' cases where there is one motorway and one motorway_link, a motorway_junction node with a ref and exit_to, and the exit_to contains one single destination name, or a list of destination names. Perhaps also patterns like "UT-201;Parley's Way;UT-269;State Street"? Then we'd have an idea of how many would be left to manually look at. > > And at that point, wouldn't motorway_junction be moot, since there > ought to be one everywhere a motorway and motorway_link join? Theoretically, but it's still a useful container for the exit number, and makes the location of the exit explicit. You could also argue that every intersection between a highway= and a railway= is a crossing, but I still think it's nice that it's explicitly mapped as one. I will follow up with some numbers, unless Paul changes his mind about this not having much interest and crunches the numbers before me. -- Martijn van Exel http://oegeo.wordpress.com/ http://openstreetmap.us/ _______________________________________________ Talk-us mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk-us
