On 26/1/22 19:01, Andrew Harvey wrote:


On Wed, 26 Jan 2022 at 10:05, Graeme Fitzpatrick <[email protected]> wrote:

    On Tue, 25 Jan 2022 at 19:39, Andrew Harvey
    <[email protected]> wrote:


        If I were to design the ideal tag for Australia, it would be
        something like:

        technicality=0-3

        0. Well formed, even surface (could almost walk it blindfolded).
        1. Uneven surface, trip hazards from rocks, tree roots etc.
        2. Large steps, long steps, may be slippery (wet, mossy or
        loose surface), likely need to use hands for balance, low or
        tight sections that you need to crouch
        3. Short sections where you're almost pulling your whole body
        weight with your arms (with or without a hand rope). Highest
        level short of proper rock climbing.


    Nicely thought out!

    Would you also add in River Crossing, possibly as 3, pushing
    climbing up to 4?


Good point. River crossings are important to consider and do affect the overall technicality of the walk. I would consider river crossings fitting into level 2, as they are similar (large steps, long steps, slippery, likely need hands for balance).

I would support a new tag to describe each river crossing, we have already:

- bridge=yes (where you can walk over)
- tunnel=culvert (when the waterway goes under the walkway)
- ford=stepping_stones (creek crossing, but stepping stones exist so you won't usually get wet) - ford=yes (which on a highway=footway/path is saying it's a creek/river crossing where the waterway flows over the path or the path goes through the river/creek)

Obviously river conditions change, but I think it's useful to tag what's usually the case:

0 creek/river crossing where there is usually no water.
1. creek crossing where generall the water level is so low that you won't have water ingress in your shoes 2. creek crossing where your body will stay dry but you'll want to take your shoes off if you prefer to keep them dry 3. river crossing where your body will get wet, may have a rope to help you cross, but you can wade through the water and won't usually need to swim
4. river crossing where you'll need to swim across

I don't like using numbers as values as they aren't self explanatory but I can't think of short terms you could use for tag values.

I've always thought of ford as more being a road was built and the watercourse flows over that road, whereas walking it's more usually the track stops/ends at either end and you're going through the watercourse, maybe it's just semantics though.


Some 'fords' have pipes under them to take the usual water flow off the road/path. I still map them as 'fords'.. as that is what they resemble.



        In the Australian context there's also probably remoteness
        measure, but these would be too subjective to tag on
        individual ways and probably could simply be a function of
        distance to nearest facilities.

        0. urban bushwalks
        1. not too remote, mostly day walks
        2. remote or multiday walks


I would think something on the ease of communication?

1. Good cell phone coverage (it does not matter which provider when calling 000/112)

2 Cell phone coverage on the peaks only, the peaks being frequent.

3 PLB advised as cell phone coverage is too sparse or non existent.


    How about water? In an Oz context, heat / thirst is often a bigger
    problem than cold, so would you have some form of tag for
    availability of water resupply? (apart from just having rivers /
    streams mapped)


Yes that's part of it, but I think it's best to keep the tag as narrow and possible and not mix in orthogonal measures. You could have a well formed even surface walk but very remote and you need supplies, likewise you could have a walk which needs pulling your body weight up, but you don't need any supplies.

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