[OSM-talk] OpenRailwayMap Electrification Status vs tag electrification=no

[Martin Koppenhoefer]

Am Do., 24. Feb. 2022 um 03:02 Uhr schrieb Pierre Béland via talk <
talk at openstreetmap.org>:

> The electrified and voltage keys are usually used in combination and this
> clearly states that a line is electrified (very few cases in Canada).
>
>

yes, if there is a positive electrified tag the voltage should possibly be
given (provided you know it), but with electrified=no we would not want to
put an additional voltage=0




> If adding the no attribute is ok, it should also be the same when adding
> the tag sidewalk=no to a highway with maxspeed=100 km
>


sure, sidewalk=* is important information for pedestrians. If you are
looking for examples where "no" would seem almost as helpful as no
information, an example could be motorroad=no on roads in general, and
particularly on roads which are not trunk, primary or seconday. Many
attribute=no should not generally be set, bridge=no, luminous=no,
covered=no, bicycle_road=no, barrier=no, etc.  but we cannot state any "no"
should be omitted, and even for those tags where we believe that no should
be generally omitted, there may be specific situations where there is
benefit from a "no"-tag.

Cheers,
Martin
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