[Tagging] maxspeed:type vs source:maxspeed // StreetComplete

djakk djakk djakk.djakk at gmail.com
Wed Sep 19 12:47:52 UTC 2018

Hello !

There is also speed limit areas, a sign is posted at the entrance of the

Imagine that a big part of Paris becomes a 30km/h area. Is it possible to
create a big polygon tagged with maxspeed=30, each street inside inherits
the maxspeed value of the big polygon ? (to escape the inheritance, simply
tag a segment of street with maxspeed=50 for example)


Le mer. 19 sept. 2018 à 14:22, Paul Johnson <baloo at ursamundi.org> a écrit :

> On Wed, Sep 19, 2018 at 7:18 AM Greg Troxel <gdt at lexort.com> wrote:
>> Philip Barnes <phil at trigpoint.me.uk> writes:
>> > And if the default actually applies, or has it been overriden by local
>> signage.
>> >
>> > I am not convinced that a default limit helps, if no speed limit has
>> been surveyed I would prefer that box not to be displayed in my app.
>> > a. It will not give me wrong and possibly costly information.
>> > b. It makes it obvious that I should survey and map the limit.
>> >
>> > Phil (trigpoint)
>> Seconded.  It's actively harmful to display an incorrect limit.
>> Defaults will inevitably lead to it
> In practice, this tends to be easy to weed out, as exceptions aren't
> common (in an overall view of centerline road miles) and quickly dispatched
> in a short series of surveys or even by armchair if there's OpenStreetCam,
> Mapillary or Bing Streetside imagery available.
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