[OSM-talk] Mapping dangerous bicycle locations?

[Warin]

The suggests values of

weather related - rain/snow will change with the weather .. naturally.

slippery = surface related ... could be tagged with surface=?

glass-shard .. can be cleaned up, thus temporary like the weather ... I 
have stopped and swept things off the path .. used some cardboard out of 
a local bin.  I've seen other cyclist do the same.

Crime .. effects not only cyclist.

--------  As Paul says below - subjective. Not that that is a bad thing 
.. but makes one mapper tag something as dangerous while another says it 
is very good. So hard to set hard values on this.

On 8/03/2015 4:47 AM, Paul Johnson wrote:
> I've brought this up before, but have since gone with the general 
> consensus that this is just too subjective, even if we were to come up 
> with some kind of rubric to standardize things.  A big and highly 
> inconsistent issue between regions is regional attitude.  I don't care 
> for on-street riding, even in a reasonably extensive network of bike 
> lanes in Portland largely because motorists have a tendency of 
> ignoring lane access completely, often driving against traffic or in 
> reserved lanes to save time with pretty flagrant disregard for 
> safety.  Or they just like to intentionally aim for cyclists and 
> pedestrians for laughs.  And the cycleways tend to be a congested and 
> unpredictable clog of pedestrians, bicycles, and dogs either off leash 
> or walking on the other side of the roadway from the person holding a 
> 20-foot-long leash, clotheslining everything in their reach.  It's an 
> NP-complete perfect storm of pitfalls.  Meanwhile, less experienced 
> cyclists would feel safer or safe in any of those situations.
>
> Meanwhile, there's very few streets in Tulsa, Dallas or Oklahoma City 
> I don't feel too out of place on and cycleways generally have 
> pedestrian facilities except in suburbs (mostly because the suburbs 
> don't have the traffic to warrant them yet and passing is a nonissue 
> save for the occasional rare blind curve, junction or hillcrest).  
> Roads like Bixby's Memorial Drive (US 64) or Oklahoma City's Portland 
> Avenue (OK 74), with their lack of shoulders, relatively high traffic 
> volumes, and total lack of even a "share the road" sign might not pose 
> substantial additional risk over a cycleway, mostly because the 
> drivers are mellow.  However, the average American would look at that 
> and say, "Nope!"
>
>
> On Sat, Mar 7, 2015 at 8:26 AM, Stefan Keller <sfkeller at gmail.com 
> <mailto:sfkeller at gmail.com>> wrote:
>
>     Hi,
>
>     What about crowdsourcing dangerous bicycle locations using key/tag
>     hazard?
>     See http://wiki.osm.org/wiki/DE:Key:hazard
>     And see also https://twitter.com/sfkeller/status/574213951644368896
>
>     Yours, S.
>
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