[OSM-talk] [tagging] Feature Proposal - RFC - incline up down

[Roy Wallace]

On Sat, Aug 22, 2009 at 2:11 AM, Morten Kjeldgaard <mok at bioxray.au.dk> wrote:
>
> On 21/08/2009, at 03.00, Martin Koppenhoefer wrote:
>
>>> Yeah, numeric value is better, but up/down is better than nothing. I
>>> think both should be allowed and within the scope of the proposal.
>>
>> if you already have good elevation data you can also tag the nodes with ele=xy
>> (but nodes can always be moved, so this data might not be most reliable).
>
> Inclines are easy to calculate if elevation data is available. IMHO tagging data with incline=* is the wrong solution to an important problem, and it signals the beginning of an immense and never-ending task of maintaining hard-to-verify data. It would be much better to work on a proper solution that involves designing a system for registering topographical data within street maps.

"Inclines are easy to calculate if elevation data is available" -
that's a big if, isn't it?

"hard-to-verify data" - I don't see why incline=* is any harder to
verify than ele=* - as you said yourself, if you have one you can
calculate/verify the other...

"It would be much better to...design a system for registering
topographical data" - sounds good, go for it. But I don't see a
problem with using incline=* in the meantime.