But there's one point on showing a route as a trunk route that I think is important to considered. And this would be on a global level, not just for Canada.
I use OSM on a Garmin Nuvi navigational system. If you are not familiar all of the OSM maps can be downloaded for free for use on GPS navigational units. Go to https://www.openmapchest.org/ to see how it is done. The problem is if you are using the OSM map on a GPS unit to show your surroundings it is hard to see provincial/state level highways on it. If a numbered route is categorized as a highway <http://wiki.openstreetmap.org/wiki/Key:highway>=tertiary <http://wiki.openstreetmap.org/wiki/Tag:highway%3Dtertiary> then it gets the same colour rendering for a collector street in an urban area. There is no difference. If all provincial numbered routes are designated as a trunk route then the end user can quickly see this on their GPS unit and therefore can guide their vehicle to this level of route easily. I'll see if I can put up screenshot of my GPS unit showing this. --- On the other hand, any road designated a private road shows up on a Garmin in bright red over powering all other roads. I don't know how to change this without re-desginating the private roads on OSM, but that would defeat what OSM is trying to achieve. Again, I am thinking of the end user of OSM. Cheers, Ken On Tue, Jan 26, 2016 at 1:49 PM, Chandler Vancouver < chandler.vancou...@gmail.com> wrote: > Completely agree, Stewart. > > Similarly I live just off a road I would consider to be a tertiary level > road. It runs for only 4 km and links up residential side streets, a high > school, an elementary school and a small scale commercial zone. It is only > two lanes wide but for over 50% of its length has a centre boulevard or a > centre dual left turn lane. As well, less than 25% of its length has > residences that off it and none where you can park on the road itself. > > Where it meets four main crossroads the intersections are as follows: > > Intersection A: full signal with priority given to the crossroad. > > Intersection B: a four-way stop. > > Intersection C: full signal with priority given to the road in question. > > Intersection D: a stop sign with the crossroad given full priority over > the road in question. > > In addition there is a walking trail that crosses with a pedestrian > activated signal but with an advanced warning signal as described at > http://wiki.openstreetmap.org/wiki/Canada:British_Columbia#Highways_and_provincial_roads > under "trunk". > > Driving the full length you would know it is a tertiary level route, yet I > can take photographs of the route that could lead you to believe it is a > trunk road. > > --- > > Another example is SW Marine Drive between Camosun Street and the > University of British Columbia - > https://www.openstreetmap.org/way/255865854#map=15/49.2428/-123.2196 . It > is designed at the level described for trunk road at > http://wiki.openstreetmap.org/wiki/Canada:British_Columbia#Highways_and_provincial_roads, > yet the OSM contributors have designated it as secondary highway. > > I don't find this a "maddening" as you say, but then I feel we could > adopt a more UK approach to the definition then a infrastructure/design POV. > > > > On Tue, Jan 26, 2016 at 1:27 PM, Stewart Russell <scr...@gmail.com> wrote: > >> A trunk road is not necessarily divided. The limited access part means >> that it's not residential. It has to go from a town or city to another town >> or city. It predates or has lesser capacity than a motorway. >> >> It's one of these maddening "know one when I see one" definitions that >> makes perfect sense in the UK but is difficult elsewhere. >> >> Much of the Trans-Canada, f'rinstance, would be considered a trunk road. >> >> Cheers >> Stewart >> >> _______________________________________________ >> Talk-ca mailing list >> Talk-ca@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/talk-ca >> >> >
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