[Talk-us] Network edge cases

[Zeke Farwell]

We probably will end up with the detailed rendering, gaps and all.  At high
zoom this should look good.  At low zoom it should also look pretty good as
we can render the toll color line on top. It may look like a dashed line in
some spots, but oh well.  For the case of olled in one direction untolled
in the other, there will be some middle zooms where the two different color
lines partially overlap and it looks a bit muddled.  Again, oh well.  I
mentioned this just to point out that it is a different behavior than what
you typically will see on a paper highway map.  Those render any road that
is generally considered a toll road with a special color, not just the
specific segments where you have to pay a toll.


On Thu, Jan 27, 2022 at 12:10 PM Paul Johnson <baloo at ursamundi.org> wrote:

> On Thu, Jan 27, 2022 at 10:56 AM Zeke Farwell <ezekielf at gmail.com> wrote:
>
>> if toll roads aren't going to use their own color
>>>
>>
>> We would like to give toll road lines their own color as that is a very
>> common treatment on American paper highway maps.  There has been discussion
>> around how to do this on Slack recently.  Simply changing the color for
>> road with toll=yes seems simple enough, but this is complicated by the fact
>> that quite a few toll roads have segments where the toll can be avoided and
>> mappers have been (correctly) putting toll=no on these, or omitting the
>> tag.  A common variant of this is toll=yes going one direction and toll=no
>> going the other.  So there isn't a current tagging practice that specifies
>> "this whole road is considered a toll road, despite short untolled
>> segments".  Putting toll=yes on a route relation can probably address this
>> in a lot of cases, but perhaps in others it may not make sense for the
>> entirety of a route to be rendered in a toll road color.
>>
>
> Why not let the gaps fly?  It helps in short cases, like where US 64 and
> US 169 run concurrent with the mostly-toll OK 364.  Or I 44 in Oklahoma,
> which is nearly entirely toll for its whole length save for brief sections
> through Tulsa, OKC and Lawton.  Being able to see that, yeah, it's mostly a
> toll route, but you can still use it free between X and Y at a glance is
> actually fairly useful.
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