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

On 22-Nov-16 01:06 AM, Ralph Dell wrote: -Original Message- From: Frederik Ramm [mailto:frede...@remote.org] Sent: Sunday, November 20, 2016 6:39 PM To: tagging@openstreetmap.org Subject: Re: [Tagging] Proper way to tag highways located in "dangerous" areas Hi, On 11/17/201

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

-Original Message- From: Frederik Ramm [mailto:frede...@remote.org] Sent: Sunday, November 20, 2016 6:39 PM To: tagging@openstreetmap.org Subject: Re: [Tagging] Proper way to tag highways located in "dangerous" areas Hi, On 11/17/2016 08:42 PM, Paul Johnson wrote: > I don

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

Hi, On 11/17/2016 08:42 PM, Paul Johnson wrote: > I don't think it's appropriate to put into the main toolchain or map > data in itself; would be better off as your own specialized mashup > keeping in mind that enormous can of worms... I agree; there are lots of other interesting things that

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

That means it's flawed, not subjective. So give it a few sources, and they will more or less cancel each others flaws. Recording crime rate is not an exact science, so of course it can never be perfect. But perfect is the enemy of good enough. Janko sub, 19. stu 2016. u 12:53 Paul Johnson

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

On Thu, Nov 17, 2016 at 2:15 PM, Janko Mihelić wrote: > On Thu, 17 Nov 2016, 20:44 Paul Johnson, wrote: > >> >> Don't. Too subjective, and tends to highlight some kinds of bigotry >> while basically giving a pass to other kinds. >> > > How is it

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

On 17/11/2016 20:15, Janko Mihelić wrote: On Thu, 17 Nov 2016, 20:44 Paul Johnson, > wrote: Don't. Too subjective, and tends to highlight some kinds of bigotry while basically giving a pass to other kinds. How is it subjective if you

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

On Thu, 17 Nov 2016, 20:44 Paul Johnson, wrote: > > Don't. Too subjective, and tends to highlight some kinds of bigotry while > basically giving a pass to other kinds. > How is it subjective if you take data from the local police? >

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

On Tue, Nov 15, 2016 at 7:04 PM, Nelson A. de Oliveira wrote: > It's the second time that we are having a major discussion here in > Brazil, on how to tag highways located in "dangerous" areas. > Don't. Too subjective, and tends to highlight some kinds of bigotry while

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

On 16/11/2016 15:36, Dave F wrote: On 16/11/2016 01:04, Nelson A. de Oliveira wrote: Other group (including me) find that this is wrong: we should not tag streets considered dangerous in OSM (specially when "dangerous" is subjective). +1 As this is clearly subjective, it should not be

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

On 16/11/2016 01:04, Nelson A. de Oliveira wrote: Other group (including me) find that this is wrong: we should not tag streets considered dangerous in OSM (specially when "dangerous" is subjective). +1 As this is clearly subjective, it should not be mapped at all, no matter what tag. Are

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

On 2016-11-16 14:08, André Pirard wrote: 2016-11-16 2:04 GMT+01:00 Nelson A. de Oliveira : Since they can't find another tag to indicate those

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

Thanks for bringing this up, I just opened a ticket with OSRM to track this: https://github.com/Project-OSRM/osrm-backend/issues/3325 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. Cheers, Daniel J H

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

2016-11-16 2:04 GMT+01:00 Nelson A. de Oliveira : Since they can't find another tag to indicate those "dangerous" places, they argue that access=destination is valid for this

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

I think if a tag is used for this, it should be clear what the source is. For example, if you have police info about which streets are dangerous, then put a tag like: hazard:source:policeStationXY=crime. If you have a NGO that tracks this, put hazard:source:NGOXY=crime. That way you could have

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

Absolutely agree that access=destination is wrong here. I also like the idea of using an external dataset. Actually, the similarity with an altitude model is quite interesting. You could use an existing router that takes elevation data and replace it with crime data. Converting crime statistics

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

I don't think tagging access=destination is a good idea. The access tag is used for the legal restrictions for a road. access=destination means you can only legally go on the road if your destination is on it. A router won't route you down a road that it thinks you (legally) can't go down. Tagging

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

2016-11-16 2:04 GMT+01:00 Nelson A. de Oliveira : > 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

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

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