On 10/11/15 09:40, Martin Koppenhoefer wrote: > 2015-11-10 9:36 GMT+01:00 Mateusz Konieczny <matkoni...@gmail.com > <mailto:matkoni...@gmail.com>>: > > In theory, it is possible that former motorway/.../tertiary with slip > roads/ramps was converted to residential road, without changing road > infrastructure and traffic is still grade-separated. > > sounds not very likely. At the point where a motorway or even tertiary > road becomes a residential road, it will clearly change a lot (or > otherwise it would remain a tertiary etc. road). A residential link > would be a road between 2 residential roads (or a residential and an > inferior road like a service), because if it were a higher road class to > which the residential connects, the link would be called after that road > class. > > There's not really a problem calling a road that connects 2 residential > roads a residential road as well. > > Examples /(also covering unclassified and even tertiary): > http://www.openstreetmap.org/way/35022603 > http://www.openstreetmap.org/way/24038678 > http://www.openstreetmap.org/way/27854328
The third example is the sort of link I would expect to see approaching a motorway where restricted traffic gets redirected, but I think that as in this case, the lowest level would be 'unclassified' rather than residential or service. Of cause in the UK most roads ARE classified in some way, so the residential or service is simply a way of avoiding having to look at 'landuse=residential' or 'retail/industrial' as these are all still link roads between other higher classification routes? So this is just a matter of agreeing terminology, and while 'tertiary_link' may well pushing the limits still, any other _link not listed on http://wiki.openstreetmap.org/wiki/Highway_link should be re-tagged. The best description of how a link should work is probably when creating routing instructions. What still grates with me is the 'Bare slightly left onto M5' when the instruction should be 'Take slip road onto Axx' and that in my book is where the _link information has an important element but could also be a second tag. However like 'highway=residential', 'highway=trunk_link' is a shorthand that works at many levels ... but should the link be tagged for the road it provides the link to rather than the one it obviously comes from? -- Lester Caine - G8HFL ----------------------------- Contact - http://lsces.co.uk/wiki/?page=contact L.S.Caine Electronic Services - http://lsces.co.uk EnquirySolve - http://enquirysolve.com/ Model Engineers Digital Workshop - http://medw.co.uk Rainbow Digital Media - http://rainbowdigitalmedia.co.uk _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
