[Tagging] Proper way to tag highways located in "dangerous" areas

Daniel Hofmann hofmann at mapbox.com
Wed Nov 16 14:27:25 UTC 2016

Thanks for bringing this up,

I just opened a ticket with OSRM to track this:

We're more than happy to support your idea of taking dangerous areas /
hazards into account when routing once we can parse it from the data.

Daniel J H

On Wed, Nov 16, 2016 at 2:04 AM, Nelson A. de Oliveira <naoliv at gmail.com>

> It's the second time that we are having a major discussion here in
> Brazil, on how to tag highways located in "dangerous" areas.
> For example, some people consider slums and other communities as
> dangerous (since there is a risk of being robbed or even killed) and
> would like to don't have the router creating a route through them,
> using "access=destination" in every street located in such places for
> this, for example.
> Since they can't find another tag to indicate those "dangerous"
> places, they argue that access=destination is valid for this case.
> Other group (including me) find that this is wrong: we should not tag
> streets considered dangerous in OSM (specially when "dangerous" is
> subjective).
> We also think that access=destination is being wrongly used for this.
> Since we can't reach a consensus on this, we would like to hear some
> opinions and suggestions on how to handle such problem, please.
> I had one idea where such data should be kept outside OSM, and
> inserted in some post-processing phase (for example, tag every highway
> that is inside these areas with any needed/wanted property).
> Comments, please?
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