[Tagging] Feature Proposal - RFC - footway=indoor

[Martin Koppenhoefer]

Am Do., 26. Sept. 2019 um 19:03 Uhr schrieb Markus <
selfishseahorse at gmail.com>:

> BTW, i find it very strange that there is a separte highway=* tag for
> indoor "flat ways" (i.e. corridors), but not for steps. Any reasons for
> that?
>
>

Not sure if we need a different tag (in both cases), but for steps we're
missing some basic parameters to define them. There is "step_count" which
is fine, but it lacks the steps measurements (e.g. 18/27, which means 18cm
high and 27 cm "free" to stand on (this is the outer measurement and does
not account for the part of the step that is covered by the next step, if
any, depending on the construction details). And the width of the thing
(usually net width = width - handrails and other stuff that obstructs the
steps). The height can also easily be calculated from the height difference
and the step count.

Additional interesting properties could be: necessary steps (required by
building code) or not, steps suitable for use during fire / with forced
smoke outlets, etc. (important emergency information).

Andf of course there are many more, like surface, general geometry (linear
/ circular / ...)

Cheers,
Martin
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