Wow, this now is really helpful information! So good that you are on this list, this is exactly the kind of thing I was seeking when posting to here! Some replies and notes:
1. > It even more common to believe that Restricted Roads are not NSL > roads. NSL Restricted Roads are a type of NSL road. How does it matter though? What does the keyword "NSL" imply? 2. Also, what about dual carriageways (nsl_dual) that are lit? Will they then also default to 30 mph if there is no explicit sign that indeed one can go faster than that? 3. So, from the document, I understand an "LSL for individual roads" would be "maxspeed:type=sign" translated to OSM while "LSL for zones" would be "maxspeed:type=GB:zoneXX" translated to OSM. I see in "OSM speak", we drop the "LSL" for these, but do not for the "NSL" stuff. General question, not directed specifically to you: Isn't that inconsistent? 4. I see you use "UK:something". I think to use "GB:something" has somewhat established itself over UK by now, looking at taginfo. (Also, the ISO-3166 of United Kingdom is GB) 5. I see you use "UK:zone_XX" instead of "UK:zoneXX". Also looking at taginfo, I think that the latter somewhat established itself over the former now: About 100,000 usages of XX:zoneYY, about 34,000 usages of XX:zone:YY and about 0 usages of XX:zone_YY --- By the way, offtopic this: Do not assume though that the UK is the only country with unnecesary complex maxspeed legislation. Look at this flow-chart created by Minh Nguyễn after researching this for Ohio, US: :-D https://wiki.openstreetmap.org/wiki/Ohio/Map_features#Speed_limits Cheers Tobias On 01/05/2018 20:19, Jason Cunningham wrote: > I had a bit of an interest in tagging speed limits a few years back. > It's way more complicated than it should be in the UK. Researching led > me down a bit of a rabbit hole of legislation & case law. > > I made the following personal notes about UK limits and how to recognise > them, which I think is mostly correct. > https://wiki.openstreetmap.org/wiki/User:Jamicu/UK_Speed_Limits > > I personally tagged restricted roads as maxspeed:type=UK:nsl_restricted > > All a bit of a mess though. > > Jason > > > _______________________________________________ > Talk-GB mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/talk-gb > _______________________________________________ Talk-GB mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk-gb
