[Tagging] RFC: highway=tidal_road

[Dave F.]

On 22/11/2011 20:33, Frederik Ramm wrote:
> Hi,
>
> On 11/22/2011 09:17 PM, Colin Smale wrote:
>> Surely the road in this case simply has tide-related opening times (and
>> a variable surface?). It may be secondary, tertiary, unclassified or
>> whatever. The fact that it is sometimes closed by the tide should be
>> tagged separately from the type of road.
>
> No. This proposal is not about normal roads that may be open or closed 
> depending on the tide. This is about unsurfaced paths which are always 
> physically accessible (i.e. never "closed"), but will be flooded at 
> high tide; using them without knowing that that they become flooded 
> may cost your life.
>
> Because the OSM ecosystem is full of software that goes "ah, 
> highway=footway, I'll use that and oh, look, there are some extra tags 
> that I don't understand, I'll just ignore them" it would be dangerous 
> to tag such a way with a normal "highway" value.

I think your wrong.

As Colin suggests any flooding/tidal data it should be tagged with a 
child tags to allow the way to be tagged to the correct highway 
classification.

Your not understand/ignore argument is weak. I mean, where would you 
stop? tag everything with just one label?