Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread Martin Koppenhoefer
Am 20/mar/2014 um 06:53 schrieb Fernando Trebien fernando.treb...@gmail.com: Wondering if any country would be doing worse than Brazil in terms of road infrastructure, I found this: http://global.umich.edu/2014/02/worlds-most-dangerous-roads-are-in-africa-middle-east-latin-america/ OT

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread Martin Koppenhoefer
Am 19/mar/2014 um 23:35 schrieb David Bannon dban...@internode.on.net: Please note that the track type scale goes from 1 to 5, there is no such thing as a grade6 Indeed. What I said was I believe there should be 6,7 and 8. There is already a small number of =grade6 in the database as

Re: [Tagging] Access tags on areas containing highway=*

2014-03-20 Thread Martin Koppenhoefer
Am 20/mar/2014 um 06:39 schrieb bulwersator bulwersa...@zoho.com: Is it reasonable to expect that well tagged road contains all access tags necessary to check whatever it is accessible? In other words - is it OK to tag area like proving ground with access=no, without tagging roads on

Re: [Tagging] Access tags on areas containing highway=*

2014-03-20 Thread Peter Wendorff
Practically I don't think it will work, as it requires much more data to be processed in the preprocessing - I therefore agree with Martin. But I think an intermediate solution should and could work: If all entrances to the area are not accessible (e.g. gates, lift-gates and such), adding

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread David Bannon
On Thu, 2014-03-20 at 09:02 +0100, Martin Koppenhoefer wrote: as the current system from 1 to 5 is an absolute one (5 being worst), No Martin, that is not the case. Nothing in the definition to indicate that grade5 is the worst possible. Fact is that there are very many roads far, far worse

Re: [Tagging] Access tags on areas containing highway=*

2014-03-20 Thread Richard Welty
On 3/20/14 6:33 AM, Peter Wendorff wrote: Personally I would consider routers to be buggy when they ignore barriers tagged on nodes of the way, while I would accept them not to do geometrical calculations between areas and ways. absolutely they are buggy. here is one example from my own

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread Richard Z.
On Thu, Mar 20, 2014 at 09:40:15PM +1100, David Bannon wrote: A few months ago, I spent two long days traversing a 250Km section of the Kennedy Development Rd in Queensland. No part of it even approached the grade5 described in tracktype= . There are many other roads, world wide, often quite

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread Martin Koppenhoefer
2014-03-20 12:42 GMT+01:00 Richard Z. ricoz@gmail.com: That means that the description of grade5 in the wiki should be fixed as similar or worse than the road to Jakutsk: http://www.ssqq.com/ARCHIVE/vinlin27c.htm looking at those pictures it seems as if that's not even a track but a

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread Martin Koppenhoefer
2014-03-20 11:40 GMT+01:00 David Bannon dban...@internode.on.net: as the current system from 1 to 5 is an absolute one (5 being worst), No Martin, that is not the case. Nothing in the definition to indicate that grade5 is the worst possible. Fact is that there are very many roads far, far

Re: [Tagging] Opinion on meaning of tracktype, smoothness and surface for routing

2014-03-20 Thread André Pirard
On 2014-03-16 22:37, Fernando Trebien wrote : Hello, Following from this conclusion (https://lists.openstreetmap.org/pipermail/tagging/2014-March/016904.html), I'm now trying to find a way to use tracktype, smoothness and surface to improve routing quality. For an

Re: [Tagging] Opinion on meaning of tracktype, smoothness and surface for routing

2014-03-20 Thread Martin Koppenhoefer
2014-03-20 15:02 GMT+01:00 André Pirard a.pirard.pa...@gmail.com: Following a gentle dispute on OSM-talk-be about the class of a particular road, I pointed out without any follow-up that road classification (primary ... tertiary, as well as national ... local on IGN maps) is very subjective

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread Fernando Trebien
In fact, the picture in this article does correspond to the description of grade4: Almost always an unpaved track prominently with soil/sand/grass, but with some hard materials, or compressed materials mixed in. Perhaps what people worry about here is how soft the surface is. There may be various

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread Martin Koppenhoefer
2014-03-20 15:50 GMT+01:00 Fernando Trebien fernando.treb...@gmail.com: Perhaps what people worry about here is how soft the surface is. There may be various degrees of softness to be measured. actually to me the problem seems that these properties are somehow dynamic. If the surface is

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread John F. Eldredge
The Russian winter roads situation is not unique. From what I have read, the same situation applies in some parts of Canada and Alaska. On March 20, 2014 10:58:01 AM CDT, Fernando Trebien fernando.treb...@gmail.com wrote: In Brazil, these conditions are somewhat often permanent (or at least

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread Fernando Trebien
What I mean is that the same idea does not apply so often and so extremely and in such a regular fashion and for long periods to other kinds of roads. That's why I said in fact, of snow. I would expect to see something very similar in southern Argentina and Chile, in Antarctica, in Greenland, and

Re: [Tagging] Landuse=civic_admin

2014-03-20 Thread Martin Koppenhoefer
2014-03-18 17:31 GMT+01:00 Brad Neuhauser brad.neuhau...@gmail.com: 4) interestingly, landuse=institution is not used at all, but landuse=institutional a bit (68 uses) yes, seems more consistent with the rest of the tags (e.g. we don't use landuse=commerce but commercial) cheers, Martin

Re: [Tagging] Access tags on areas containing highway=*

2014-03-20 Thread Kytömaa Lauri
bulwersator wrote: In my opinion all relevant access tags should be on way and its nodes, otherwise it is unclear whatever road inherits access data from area. Yes, and it shouldn't be a goal to inherit access tags from surrounding areas. Even if mappers would consistently set layer=* on the way

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread Kytömaa Lauri
David Bannon wrote: Should I use this road or not ? tracktype= does claim to use that approach It's a shame that we, the community, don't excel at documenting. The part about how well maintained on the Key:tracktype page was added later after the values. There is a connection, but tracktype

Re: [Tagging] Landuse=civic_admin

2014-03-20 Thread Kytömaa Lauri
johnw wrote: Martin Koppenhoefer wrote: there is a lot of stuff that isn't yet covered by the well introduced landuses, including: And somebody mentioned landuse=institutional at 68 uses. There's 332 cases of landuse=civil, which we have used for areas and plots used for state or municipality

Re: [Tagging] Landuse=civic_admin

2014-03-20 Thread Martin Koppenhoefer
2014-03-20 19:24 GMT+01:00 Kytömaa Lauri lauri.kyto...@aalto.fi: And somebody mentioned landuse=institutional at 68 uses. There's 332 cases of landuse=civil, which we have used for areas and plots used for state or municipality functions that don't fit in the industrial or commercial uses.

Re: [Tagging] Opinion on meaning of tracktype, smoothness and surface for routing

2014-03-20 Thread Fernando Trebien
Even so, we would still have to presume things about the driver's personality (an adventurous person would not care much about rougher surfaces, while a precaucious one would probably rather avoid them). We can pick a standard personality (we don't even know that very well without some statistics,

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread David Bannon
On Thu, 2014-03-20 at 11:50 -0300, Fernando Trebien wrote: Perhaps what people worry about here is how soft the surface is. Trouble is Fernando, that in many cases the problem is not in fact 'softness', it could be rocks, ruts, slippery, steepness, angle (left/right) and lots more. The biggest

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread vali
Hi I tried to figure out how to tag these tracks the right way but after reading the wiki and this thread it seems the tracks discussed are almost like gravel roads or tracks in farmlands. Most tracks here are old (some of them centuries old), very twisty and the maintenance is almost none. I

Re: [Tagging] Opinion on meaning of tracktype, smoothness and surface for routing

2014-03-20 Thread David Bannon
On Thu, 2014-03-20 at 15:02 +0100, André Pirard wrote: Following a gentle dispute on OSM-talk-be about the class of a particular road, I pointed out without any follow-up that road classification (primary ... tertiary, as well as national ... local on IGN maps) is very subjective but that the

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread David Bannon
Vali, great contribution to the discussion. The three photos sort of span the things we are talking about, confused a little by the fact that they don't really suit 'cars' ! tracktype= is really focused on [cars, suv, 4x4, trucks] but useful info for bike or walkers. I sort of think

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread vali
Thanks David I don't like smoothness values either. Problem is this key does't take in account other things that can prevent certain type of vehicles from using that type of track. I put an example in the last pic with a track with good surface but everything else is not so good. At first I saw

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread Dave Swarthout
Vali, those are some of the nastiest tracks I've ever seen. No ordinary car is going to be traversing those and even most 4WD will be forced to drive very slowly in order to avoid the bigger, protruding rocks. As for tracktype, there is no grade type to describe them unless we extend the grade

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread Martin Koppenhoefer
2014-03-20 22:26 GMT+01:00 vali val...@gmail.com: I have some pics to show what I am talking about: http://oi59.tinypic.com/33fala8.jpg http://oi60.tinypic.com/1zmmrlt.jpg These should be trackytpe 2 or maybe 1. to me the first one looks like highway path and the second one like

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread Dave Swarthout
I generally agree with Martin's assessment. None of these tracks is all that suitable for getting from one place to another in any reasonable amount of time, if ever. The photos point out quite well the limitations of the tracktype definitions. On Fri, Mar 21, 2014 at 6:47 AM, Martin

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread Fernando Trebien
I believe I understand exactly what you mean, David, and I fully agree. We could start by advising people to use the values for smoothness in their descriptions. If so many people agree that the current values are inappropriate, let's write a proposal for the new values, get it approved (should be

Re: [Tagging] Opinion on meaning of tracktype, smoothness and surface for routing

2014-03-20 Thread Fernando Trebien
We can't assume a relationship with road quality but I think we can assume some approximate relationship with maximum safe speed. No matter how smooth and well maintained a narrow (say 3m wide) road is, you can't drive safely at 90kmph on it, specially if it has curves. On Thu, Mar 20, 2014 at

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread Fernando Trebien
http://oi61.tinypic.com/6ozcdw.jpg grade5? In the wiki: Almost always an unpaved track lacking hard materials, uncompacted, subtle on the landscape, with surface of soil/sand/grass. So if you guys agree that this is grade5 (or worse), what's written in the wiki is far from accurate. On Thu, Mar

Re: [Tagging] surface=ground/dirt/earth

2014-03-20 Thread Fernando Trebien
But at least now I know I need to review my values more pessimistically. (Which is what I wanted after all.) On Thu, Mar 20, 2014 at 9:27 PM, Fernando Trebien fernando.treb...@gmail.com wrote: http://oi61.tinypic.com/6ozcdw.jpg grade5? In the wiki: Almost always an unpaved track lacking hard