[Tagging] Sea wall defence barrier

Lennard ldp at xs4all.nl
Fri Sep 17 23:48:15 BST 2010


On 17-9-2010 23:29, Dave F. wrote:

> I've never been happy using man_made as it's far too general. (instead I
> tag buildings as buildings etc..)

Mother nature sure didn't form these constructs.

> reinforced_slope is to vague for me. Sometimes it's just natural bolders
> & others it's a vertical wall.

Thanks, you nailed it. We _are_ using it as a generic, somewhat vague 
tag, as we know these appear in various different forms and scopes that 
only a survey can make clear as to what exactly it is.

In that respect it's somewhat analogous to, say, natural=wetland. We're 
subclassing that as wetland=* to denote the various types of wetland. 
Taking that concept to your example:

> I'm thinking that as it's to protect against the waves/tide it should be
> barrier=; & taking from the wiki & general usage (UK) it should be
> sea_wall.

A seawall is just one specific form of what we (and our national mapping 
agency) call a reinforced slope.

slope=seawall, slope=revetment ?
surface=concrete/asphalt/accropode/riprap/basalt ?

> barrier=seawall.
>
> Any objections?

What do you call such a thing if it is the shore of a reservoir, or 
along a river tens or hundreds of $distance_unit inland?


-- 
Lennard



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