Re: [Tagging] Warning traffic signs - Invitation to discussion

2012-03-16 Thread OSM user 
"At least with the US versions, they simply indicate the presence of a
curve, not a particular additional danger" - so, I understand, that we
should think, that these US "curve"-signs are not analogous to
"dangerous turn"-signs in other countries, because they have another
sense.

-

15 марта 2012 г. 1:28 пользователь Paul Johnson  написал:
>
> On Mar 14, 2012 2:58 PM, "John F. Eldredge"  wrote:
>>
>> Paul Johnson  wrote:
>>
>> > On Wed, Mar 14, 2012 at 1:32 PM, OSM user  wrote:
>> > > You can look at these signs here:
>> > >
>> >
>> > http://wiki.openstreetmap.org/wiki/Talk:Proposed_features/Traffic_sign#dangerous_turn_and_dangerous_turns
>> > > .
>> > > These signs mean:
>> > > *) there will be dangerous turn to the right
>> > > *) there will be dangerous turn to the left
>> > > *) there will be several dangerous turns, the first of them is turn
>> > to the right
>> > > *) there will be several dangerous turns, the first of them is turn
>> > to the left
>> >
>> > I wonder if these are country-specific signs or if we're having a
>> > failure in communication?
>> >
>>
>>
>> The USA uses similar signs, except that ours tend to be on a yellow
>> diamond-shaped sign, rather than a red-and-white triangle.
>
> Aah, so curve, sharp turn and reverse turn signs.  At least with the US
> versions, they simply indicate the presence of a curve, not a particular
> additional danger.
>
>
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Re: [Tagging] Warning traffic signs - Invitation to discussion

2012-03-16 Thread Paul Johnson 
On Fri, Mar 16, 2012 at 8:05 AM, OSM user  wrote:
> "At least with the US versions, they simply indicate the presence of a
> curve, not a particular additional danger" - so, I understand, that we
> should think, that these US "curve"-signs are not analogous to
> "dangerous turn"-signs in other countries, because they have another
> sense.

Right.  There are extreme exceptions (links below to imagery on
approach), but there's no standardized sign specifically for the
situation.  You still know it, though:

http://g.co/maps/dv9ab (approaching sharp, blind and frequently
congested freeway curve)
http://g.co/maps/agjnm (sharp freeway curve approached in the previous
link, no horizontal visibility thanks to tunnel, no lane change zone
continues to end of freeway)

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