[Tagging] River crossing grade

[Warin]

On 9/5/22 21:40, Timothy Noname wrote:
> Where there is a hazard from predators I would like to suggest the 
> following tag
>
> diet:humans=yes


Some don't eat humans.. they just defend themselves. e.g. snakes, 
hippos, elephants ...

>
>
>
> On Mon, 9 May 2022, 12:10 martianfreeloader, 
> <martianfreeloader at posteo.net> wrote:
>
>     I don't think these kinds of considerations should be a reason
>     *not* to
>     map/tag something on OSM.
>
>     Otherwise, the same reasoning could be used against mapping a
>     notoriously dangerous road, a demanding hiking path or a climbing
>     crag.
>
>     OSM should only provide information, not try to influence what
>     people do
>     with that information. Otherwise, there would be endless discussions
>     about whether or not to map speed cameras, military areas, etc.
>
>     Of course, security-relevant information can be mapped. If we think
>     relevant information is missing (e. g. danger from crocodiles),
>     then I
>     think, the better way to go is to add this information, rather than
>     removing other relevant information.
>
>
>
>
>     On 09/05/2022 10:18, Warin wrote:
>     > For some river crossings in Australia OSM would then have the value
>     > 'swim' on crocodile infested rivers.. that is NOT a good idea!
>     And yes
>     > people have died at some of these crossings by crocodile.
>     >
>     >
>     > I see no reason not to simply state a water depth.. even
>     inaccurate it
>     > will give a better idea than 'swim', 'wellies' etc.
>     >
>     >
>     > for tidal ..example depth at high_tide=x, depth at low_tide=y
>     >
>     >
>     > On 27/1/22 09:44, Timothy Noname wrote:
>     >> Last summer I visited Lopwell dam which is a River ford at low
>     tide
>     >> and about 6ft deep at high tide.
>     >>
>     >> https://maps.app.goo.gl/NYWvnVfeqzSMbhbN8
>     >>
>     >>
>     >> There is also another ford further down stream which is virtually
>     >> impassable for anything but a proper 4x4 or tractor,
>     >> https://maps.app.goo.gl/TACQSMDdw9dUR18GA
>     >> (interesting to watch on YouTube though.)
>     >>
>     >>
>     >> If I were to tag Lopwell dam ford I would like to give it a max
>     value
>     >> of swim and a minimum value of wellies.  The foot bridge by its
>     side
>     >> is broken but once it's repaired would have a min value of dry
>     and a
>     >> max value of swim or wade.  This would provide useful
>     information to
>     >> anyone planning a journey.
>     >>
>     >> On Wed, 26 Jan 2022, 20:53 ael via Tagging,
>     >> <tagging at openstreetmap.org> wrote:
>     >>
>     >>     On Wed, Jan 26, 2022 at 06:30:37PM +0000, Philip Barnes wrote:
>     >>     > On Wed, 2022-01-26 at 18:13 +0000, Timothy Noname wrote:
>     >>     >
>     >>     > Tidal is certainly an unusual thing for a ford, I have
>     seen one
>     >>     or two
>     >>     > but most roads affected tides are causways and the
>     general rul
>     >>     is you
>     >>     > do not travel on them if they are covered with water. Tide
>     >>     implies salt
>     >>     > and I would certainly not drive one no matter how shallow the
>     >>     water is.
>     >>
>     >>     Well, I know of one dubious case in Cornwall:
>     >> https://www.openstreetmap.org/way/270055625
>     >>     is an historic ford crossing the West Looe River which is
>     just about
>     >>     tidal at that point. It was incorrectly mapped as a bridge
>     >>     some years ago: I have no idea how that could be so wrong,
>     but then
>     >>     I have surveyed near there several times, and presumably
>     the "bridge"
>     >>     was from armchair mapping.
>     >>
>     >>     I can just about imagine a local farmer crossing in a large
>     tractor
>     >>     when the water is very low, but I have seen no sign that
>     there is any
>     >>     modern use. Streetview seems to have got a bit of the track
>     leading
>     >>     there: https://goo.gl/maps/9JeA6d6WN7Mbn72V6
>     >>
>     >>     Anyway, there can be genuine fords which are tidal, even if
>     this
>     >>     particular example is disused.
>     >>
>     >>     ael
>     >>
>     >>
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