On 3 June 2015 at 07:00, Maarten Deen <[email protected]> wrote: > On 2015-06-03 02:04, pmailkeey . wrote: > >> iD shows oneway=unknown if it's not set. If it's unknown, iD should >> not show oneway at all. >> > > I agree. > > In OSM if oneway=no then it's not oneway and the oneway tag should not >> appear at all. >> > > Here I don't agree. > > The only time oneway should appear is in the case of oneway=yes - and >> the '=yes' is superfluous. >> > > Some roads are implied oneway. E.g. junction=roundabout and > highway=motorway both imply that the road is one-way only. If for some > reason the object in case is not oneway, a oneway=no tag is very much > needed. > > I agree that in every case where oneway=yes is not implied, oneway=no is > superfluous (in a network design way), but that does not make oneway=no > superfluous. > > There is also the occurence of oneway=-1 in case someone reverses the > direction of a way. What should be done when the only possibility for > oneway is either set or unset and the direction gets reversed? Should > reversing be disallowed? Should you get a warning "oneway street can not be > reversed"? > > Maarten > > Are the world of random renderers going to look for junction=roundabout and make the same oneway assumption ? Would it not be better for 'junction=roundabout' to cause a mechanical edit by adding the oneway tag - so that rather than saying =no, the tag could simply be removed ?
What reason is there for reversing the way - as presumably all direction-dependent tags have + / - options ? Leads to the question as to why make oneway an exception to this rule - it seems most logical to have oneway as the direction as indicated rather than against. Them's my thoughts ! -- Mike. @millomweb <https://sites.google.com/site/millomweb/index/introduction> - For all your info on Millom and South Copeland via *the area's premier website - * *currently unavailable due to ongoing harassment of me, my family, property & pets* T&Cs <https://sites.google.com/site/pmailkeey/e-mail>
_______________________________________________ talk mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk
