Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-13 Thread Bryce Nesbitt
On Tue, Mar 10, 2015 at 2:56 PM, Mateusz Konieczny matkoni...@gmail.com
wrote:

 I am maintaining personal database of issues and problems in my city[1].
 Most of it is about cycling-related problems.


Another example:
https://bikeeastbay.org/hazards_map
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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-10 Thread Martin Koppenhoefer
2015-03-08 16:01 GMT+01:00 Volker Schmidt vosc...@gmail.com:

 Subdivision of the hazard namespace

 To me it would come naturally to subdivide the namespace as follows for
 different users of the road:

- hazard:general=


- hazard:pedestrian=


- hazard:motor_vehicle=


- hazard:bicycle=


- etc.



+1, but I suggest to keep hazard for hazard:general

Cheers,
Martin
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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-10 Thread malenki
On Sat, 7 Mar 2015 15:26:38 +0100,
Stefan Keller wrote:

 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

tl;dr: As a lot of others already said: a quite subjective thing to
map.

In Germany a lot of more experienced bicyclists regard all separate
cycleways or even footways with bicycle=yes as hazard – with good
reason.
Every year a signifikant number of bicyclists get right-hooked by cars
turning right and their drivers not paying enough attention.
Every year, a signifikant number of those right-hooked bicyclists die.

Never mind the cars parking on the cycleways, crossing service streets,
the pedestrians, dogs etc which would make the experienced bicyclist
cringe from awe while the less experienced are happy to cruise along
with walking speed even on sidewalks where they are not allowed except
being ten or younger.

Ridiculous is the mentioning of snow or shattered glass. During winter
and below 0°C common sense should tell a bicyclist that surfaces might
be covered with snow or ice and thus slippery.
Some tags regarding winter servicing do exist although the proposal
wasn't guided to a voting process.
For glass and other stuff on highways: everybody should expect that
on the surface of the road stuff may lay which can harm the vehicle –
from glass of bottles thrown away by stupid people to shattered windows
of a car after an accident to nails and screws falling off carpenter's
car to vehicle parts lost while driving (exhaust, bump guard,
suspension parts, oil etc).
Bicyclists may take into consideration that on a road frequently
traveled by cars the smaller stuff like glass gets cleared away by the
crumbling effect of the car's tires so that cleaning is in opposition to
a cycleway needed less often. (Of course the bicyclist shouldn't ride
to the utmost right of a highway were no cars go and all the rubble
collects)

Thomas



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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-10 Thread Bryce Nesbitt
On Mon, Mar 9, 2015 at 2:30 PM, Warin 61sundow...@gmail.com wrote:

  Sharp curves .. would they not be obvious from the map it self .. one
 node on the sharp corner compared to many for a 'smooth' corner.'Masked'
 corners where some object hides on coming traffic (e.g. building,
 vegetation)  are also a hazard.

 These hazards exist for all kinds of traffic and not indicated on maps.


The signs I have in mind were added after a long history of incidents at
the given location.

One such sign warns of a persistently wet surface in a given area.  Enough
cyclists spilled on
that section that the sign was added.



This is typical: traffic measures are added after a series of incidents
among road users.
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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-10 Thread Stefan Keller
To me it's almost undisputed that traffic signs - including warning
signs for cyclists - can be and are mapped.

-S.

2015-03-10 21:33 GMT+01:00 Bryce Nesbitt bry...@obviously.com:
 On Mon, Mar 9, 2015 at 2:30 PM, Warin 61sundow...@gmail.com wrote:

 Sharp curves .. would they not be obvious from the map it self .. one node
 on the sharp corner compared to many for a 'smooth' corner.'Masked' corners
 where some object hides on coming traffic (e.g. building, vegetation)  are
 also a hazard.

 These hazards exist for all kinds of traffic and not indicated on maps.


 The signs I have in mind were added after a long history of incidents at the
 given location.

 One such sign warns of a persistently wet surface in a given area.  Enough
 cyclists spilled on
 that section that the sign was added.

 

 This is typical: traffic measures are added after a series of incidents
 among road users.

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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-09 Thread Ian Sergeant
On 10 March 2015 at 08:30, Warin 61sundow...@gmail.com wrote:


 These hazards exist for all kinds of traffic and not indicated on maps.
 Usually people are expected to be aware of their surroundings, not to rely
 on other aids as to what is visually obvious? :-\



The idea here is not to use it as a replacement for being visually aware,
but possibly to avoid (or minimise) these hazards when planning a cycle
route.  That said, I think we still have to find a way to map objective and
verifiable facts to that end.

Ian.
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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-09 Thread Warin

On 9/03/2015 9:08 PM, moltonel 3x Combo wrote:

On 09/03/2015, Bryce Nesbitt bry...@obviously.com wrote:

There are in places bicycle specific warning signs (e.g. sharp curve
bicylists beware)
and THOSE can definitely be mapped.

Agreed, we can probably draw the line on wether the hazard is
signposted. And most of the values in taginfo and the proposal look
like they can fit that criteria.




Sharp curves .. would they not be obvious from the map it self .. one 
node on the sharp corner compared to many for a 'smooth' corner.'Masked' 
corners where some object hides on coming traffic (e.g. building, 
vegetation)  are also a hazard.


These hazards exist for all kinds of traffic and not indicated on maps. 
Usually people are expected to be aware of their surroundings, not to 
rely on other aids as to what is visually obvious? :-\
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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-09 Thread moltonel 3x Combo
On 09/03/2015, Warin 61sundow...@gmail.com wrote:
 Sharp curves .. would they not be obvious from the map it self .. one
 node on the sharp corner compared to many for a 'smooth' corner.'Masked'
 corners where some object hides on coming traffic (e.g. building,
 vegetation)  are also a hazard.

 These hazards exist for all kinds of traffic and not indicated on maps.
 Usually people are expected to be aware of their surroundings, not to
 rely on other aids as to what is visually obvious? :-\

From the osm perspective, all these extra bits of information may not
maped yet (road width, vegetation height...) or ever (relief). Even
when they are, deducing the visibility algorythmically is hard. You
might not want to render hazard=curve, but still want to provide it to
drive-assist software.

As for drivers being aware of their suroundings, if the local
authority decided to signpost a curvy road, it's a good hint that osm
should as well. It's not much different from tagging maxspeed.

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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-09 Thread Bryce Nesbitt
There are in places bicycle specific warning signs (e.g. sharp curve
bicylists beware)
and THOSE can definitely be mapped.
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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-09 Thread moltonel 3x Combo
On 09/03/2015, Bryce Nesbitt bry...@obviously.com wrote:
 There are in places bicycle specific warning signs (e.g. sharp curve
 bicylists beware)
 and THOSE can definitely be mapped.

Agreed, we can probably draw the line on wether the hazard is
signposted. And most of the values in taginfo and the proposal look
like they can fit that criteria.

Note that http://wiki.openstreetmap.org/wiki/OpenHazardMap seems to
use a different set of keys, with usage stats comparable to hazard=*.
We probably want to merge the two schemes together.

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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-09 Thread Martin Koppenhoefer
2015-03-08 12:24 GMT+01:00 Martin Koppenhoefer dieterdre...@gmail.com:

  Am 08.03.2015 um 11:53 schrieb Stefan Keller sfkel...@gmail.com:
 
  I actually wonder, if this is a case for WikiProject Cleanup?


 +1, the German page is not a translation of the proposal page, but the
 latter is much older and dates back to 2007.



I propose the German page for deletion. The only 3 documented values occur
1, 1 and 2 times, so this is clearly not a page documenting best practise,
and should have been added in the proposal name space.

Is there a template to propose page deletions in the wiki so WikiProject
Cleanup gets noticed?

Cheers,
Martin
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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-08 Thread Martin Koppenhoefer




Am 07.03.2015 um 16:34 schrieb Jochen Topf joc...@remote.org:

 See http://wiki.osm.org/wiki/DE:Key:hazard
 And see also https://twitter.com/sfkeller/status/574213951644368896
 
 Sounds very subjective to me. Doesn't belong in OSM.


the German page does indeed define subjective values while there is a proposal 
which has fairly objective values 
http://wiki.osm.org/wiki/Proposed_features/hazard

cheers 
Martin 
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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-08 Thread Tobias Preuss
This survey might be of interest for (at least the Berlin part of) you.
https://radsicherheit.berlin.de

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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-08 Thread Martin Koppenhoefer




 Am 08.03.2015 um 11:53 schrieb Stefan Keller sfkel...@gmail.com:
 
 I actually wonder, if this is a case for WikiProject Cleanup?


+1, the German page is not a translation of the proposal page, but the latter 
is much older and dates back to 2007. 

cheers
Martin
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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-08 Thread Stefan Keller
Hi,

Thanks for the discussion so long. I agree mostly that 1. its
potentially subjective and 2. not always visible as real world
object.
I've added a notice to the german page:
https://wiki.openstreetmap.org/wiki/DE:Key:hazard
I actually wonder, if this is a case for WikiProject Cleanup?

Yours, S.



2015-03-08 11:29 GMT+01:00 Martin Koppenhoefer dieterdre...@gmail.com:




 Am 07.03.2015 um 16:34 schrieb Jochen Topf joc...@remote.org:

 See http://wiki.osm.org/wiki/DE:Key:hazard
 And see also https://twitter.com/sfkeller/status/574213951644368896

 Sounds very subjective to me. Doesn't belong in OSM.


 the German page does indeed define subjective values while there is a 
 proposal which has fairly objective values 
 http://wiki.osm.org/wiki/Proposed_features/hazard

 cheers
 Martin

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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-07 Thread Paul Johnson
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 sfkel...@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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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-07 Thread Jochen Topf
On Sa, Mär 07, 2015 at 03:26:38 +0100, Stefan Keller wrote:
 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

Sounds very subjective to me. Doesn't belong in OSM.

Jochen
-- 
Jochen Topf  joc...@remote.org  http://www.jochentopf.com/  +49-173-7019282

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Re: [OSM-talk] Mapping dangerous bicycle locations?

2015-03-07 Thread 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 sfkel...@gmail.com 
mailto:sfkel...@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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