[mkgmap-dev] [PATCH v1] grok unpavedness

Mon Dec 7 23:24:33 GMT 2009

On 08.12.2009 00:17, Chris-Hein Lunkhusen wrote:
> Mark Burton schrieb:
>
>    
>> The attached patch allows you to add either unpaved=yes/true/1 or
>> paved=no/false/0 to a way and then it will be ignored for routing
>> purposes when the GPS has been told to avoid unpaved roads.
>>
>> Not sure if those are the best tags to use - any thoughts?
>>      
> I think the most used tag is surface=unpaved, but as usual
> we can do this in the style file.
>
> highway=*&  (surface=unpaved | surface=dirt | surface=sand |
> surface=ground | surface=gravel) {add unpaved=yes}
>
> Chris
>
>    
Well I prefer if it it is kept like right now, and surface=* is not 
automatically considered as unpaved avoidance and the tag itself is not 
present in OSM database. This leaves more choice in the style-file to 
abuse the unpaved tag (and allows the choice if for example 
tracktype=grade2 is considered to be avoided or not via "avoid unpaved 
roads".

The default style-file of course should have something like below:

highway=*&  (surface=unpaved | surface=dirt | surface=sand |
surface=ground | surface=gravel | tracktype=grade2 | tracktype=grade3 | tracktype=grade4 | tracktype=grade5 | sac_scale=* | smothness= ........) {add unpaved=yes}

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