On Tue, Dec 17, 2019 at 7:24 AM Mike N <[email protected]> wrote: > > I think many of the trunk VS motorway VS primary conflicts come from > 2 points of view: on the one hand, people like to zoom out and see a > coherent network of interconnected roads.
In which case, rendering based on network on the route relations would be more appropriate. > In the end, this would suffer from the same connectivity issue: > should the US highway remain a trunk as it reduces to 2 lanes and drops > to 30mph passing through a tourist area? Would that tend to draw GPS > navigation routes from nearby faster, parallel streets? No. What usually causes this is a regional speed limit where the local speed is not yet known to OSM and/or priority signage hasn't been mapped yet that obviate staying on the highway as the best route to the renderer based on ground truth. > Or would it > look like an ugly gap in the trunk road if it switched to primary in > that tourist area? > Depends on if you're rendering based on class or based on network. > As an aside, I sense that the tendency to upgrade results in all OSM > streets being promoted by one level, resulting in a compression at the > top end and less class distinction at those levels. > This tends to be the case. Seems like based on the AK2 conversation, this is a prolific problem in northern Canada, where roads are uncommon in general.
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