[OSM-talk-be] Some maxspeed mapping questions

[Gerard Vanderveken]

Ben Laenen wrote:

>On Thursday 10 November 2011 17:31:10 Marc Gemis wrote:
>  
>
>>I've read the wikipage on maxspeed tagging, but I have the following
>>questions:
>>
>>- How does one tag the end of a zone, I cannot find the number of that sign
>>? Start zone should be tagged with BE:F4a
>>    
>>
>
>Zone traffic signs don't have numbers (with the exception of a zone 30 which 
>has a specific sign number). You could invent something like zone(C43[50]) for 
>a zone 50.
>
>  
>
>>- How do you tag different speeds for 'cars' and e.g. +5t ?
>>    
>>
>
>Doesn't really have an agreed way of tagging. I made an effort solving this by 
>making http://mijndev.openstreetmap.nl/~eimai/verkeersborden/ (not finished, 
>don't look at the highway tags; use Firefox, maybe Chrome works as well). 
>Click the signs and the tags appear.
>
>In this case it would be something like
>maxspeed = 70
>maxspeed[weight>5] = 50
>
>It's sufficient that everyone understands it, the exact syntax doesn't matter 
>too much for now, since there are no programs able to read it anyway for now.
>  
>
See also
http://wiki.openstreetmap.org/wiki/Proposed_features/Scope_for_access_tags

>  
>
>>- In case I create individual nodes for the the traffic sign (as requested
>>on the wiki page), how do I indicate the direction for which the sign is
>>meant ?
>>    
>>
>
>This is an unsolved question... Some may use directions like N/E/S/W for 
>north/east/south/west. But then you also need to be able to attach the node to 
>the proper way (bridges and dual carriageways make this a difficult problem).
>
I would rather use the left / right suffixes in stead of directions, as 
they define the position always clear
(eventually  forward / backward, but it seems somewhat deprecated)
http://wiki.openstreetmap.org/wiki/Proposed_features/right_left

Regards,
Gerard

>
>Greetings
>Ben
>
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>  
>
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