On Fri, Oct 13, 2017 at 11:00 PM, Evin Fairchild <evindf...@gmail.com> wrote:
> Another thing worth adding is that if we do decide to tag two-lane roads > as trunk, you will still be able to tell the undivided two-lane roads apart > from the divided four-lane roads, even at zoom 5. I'm sure many of you have > noticed if you've looked at Canada at zoom 5, you can see that some of the > trunks are thicker than others. If you zoom in more, you'll notice that > said thicker roads are divided/ dual carriageway, whereas the thinner ones > are undivided roads. Also, the same is true with motorways, so we could > theoretically tag super-twos as motorways and still tell them apart from > actual Interstate freeways. This has been done extensively in New Brunswick > and Nova Scotia, and I quite like it. But we probably shouldn't go down > that rabbit hole at this point... > I also disagree with the idea that (at least in the US, though also relevant to the rest of North America to a lesser extent) a super-2 qualifies as a motorway. I generally consider the minimum requirements for motorway as dual carriageway, with each carriageway having a minimum of two lanes, barring temporary traffic controls (such as a reduction to one lane each way, undivided, very common when a DOT needs to restrict access completely to one motorway for routine maintenance or immediately after a major disaster; most frequently personally experienced in California, Oklahoma and Kansas, and routinely planned for to the extent that permanent crossover "X" links are installed regularly in Kansas and Oklahoma).
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