[Tagging] waterway=wadi problem

[johnw]

>>> Some part of road have
>>> concrete parts that are flood_prone during cyclone.
>>> 
>>> How can we (or not) extend it to roads?
>> 
>> 
>> access:conditional  = no @ flood
> 
> I'm using flood_prone=yes. With surface=concrete.
> 
> But I was looking for some method to unify intermittent aspects of rivers and roads that are related when roads are crossing river or vice versa.



the ford=* key might be useful. They suggest to also tag depth=0 if it is usually dry year round. I think this is the tag you are looking for, especially since the road section is designed to be submerged (the concrete sections) which means it is a ford (as emergency or very large vehicles, like a bulldozer, could still cross on the road). 


In San Diego, there are several large roads that are built with fords, as access lost during flood conditions is merely an inconvenience.

I think this applies to any roadway *designed* to let you cross a river by going through it, even if it is low/dry most of the time (otherwise, floodwaters would easily destroy the crossing).

Also, because of the wadi problem, i will be making up a new “wash” proposal - as it seems wadi is completely generic now. 


Javbw