[Talk-us] HOV lane tagging

[Jack Burke]

I also thought that it would contradict the other tags.  But, the wiki page
http://wiki.openstreetmap.org/wiki/Tag:access%3Ddesignated seems to pretty
much say we're both wrong on that score:

"The value *designated* is not meant to imply that OpenStreetMap access
<http://wiki.openstreetmap.org/wiki/Key:access>=* permissions have been
automatically 'designated' *only* to that transport mode! If an element is
meant *only* to be used by specific designated transport methods
(overriding whatever defaults may exist for that way), use access
<http://wiki.openstreetmap.org/wiki/Key:access>=no
<http://wiki.openstreetmap.org/wiki/Tag:access%3Dno> in addition of the *
<http://wiki.openstreetmap.org/wiki/Key:*>=designated value."

I say "seems to," which is why I wanted to ask for clarification.  With
respect to the HOV lanes, it matters greatly, because there are certain
interstate exits that are HOV-only which a router shouldn't choose those to
get somewhere if you're not carrying multiple passengers in your car (which
is pretty much the default in the U.S.).

--jack


On Tue, Nov 15, 2016 at 6:13 PM, Elliott Plack <elliott.plack at gmail.com>
wrote:

> Jack,
>
> Good question. I am curious about the answer as well, specifically
> regarding bicycle lanes, which can be added using this method.
>
> Setting a right side bike lane to ...yes|designated doesn't preclude other
> vehicles from accessing the right lane, as you said.
>
> I thought about adding |no for regular access, but wouldn't that general
> access contradict the other tags?
>
> The Mapbox data team has been doing lots of turn lane tagging around the
> US [1], so perhaps a member of the team there can provide insight on this.
>
> Elliott
>
> [1] = https://www.mapbox.com/blog/la-turn-lanes-map/
>
> On Tue, Nov 15, 2016 at 6:01 PM Jack Burke <burkejf3 at gmail.com> wrote:
>
>> Something about some HOV access tags I've seen have been bothering me.
>>
>> Some of the interstates through Atlanta have designated HOV-only lanes.
>> In looking at the attributes on them, someone has added
>> hov:lanes=designated|yes|yes|yes|yes {etc.} to them.
>>
>> However, after reviewing the wiki for the "designated" tag, it doesn't
>> appear to _exclude_ other modes of transport--just using the
>> hov:lanes=designated tag on the leftmost lane still implies that non-HOV
>> transportation is allowed.  For example, motorcycles are allowed, but
>> single-passenger cars are not, but the current tagging doesn't appear to
>> prohibit single-passenger cars, if I'm reading the wiki right.
>>
>> Reading up on the access tag leads me to think that it would be better to
>> include access:lanes=no|yes|yes|yes|yes {etc.} to preclude non-HOV
>> traffic, as well as add motorcycle:lanes=yes|yes|yes|yes|yes {etc.}
>>
>>
>> For example, the section of northbound I-75/I-85 under this marker
>>
>> http://osm.org/go/ZQqq80Lkl-?layers=N&m=
>>
>>
>> currently has the tag
>>
>> hov:lanes=designated|yes|yes|yes|yes|yes|yes
>>
>> Am I correct in thinking that it would be right to add these tags, too:
>>
>> access:lanes=no|yes|yes|yes|yes|yes|yes
>> motorcycle:lanes=yes|yes|yes|yes|yes|yes|yes
>>
>> Thanks for any feedback!
>>
>> --jack
>>
>> _______________________________________________
>> Talk-us mailing list
>> Talk-us at openstreetmap.org
>> https://lists.openstreetmap.org/listinfo/talk-us
>>
> --
> Elliott Plack
> http://elliottplack.me
>
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