Hi Robert.
Of course that's something just not included yet, but I think it should
be kept in mind while polishing your idea.
I thought about the problem of sidewalks more than a few hours, so it's
not a fast reaction to your mail only.
Complexity IS an argument to keep in mind when elaborating new ideas.
If you have counter arguments or anything why your new idea is better
regardless of the complexity drawback: fine.
I simply want to avoid you stumbling over that issue after more work
than necessary. Please read it as criticism, that should be as much
constructive as possible - with the problem that I have no idea how to
deal with that drawback (well - beside ignoring it).
regards
Peter
Am 06.01.2011 20:25, schrieb Robert Elsenaar:
@Peter: This reaction is just the that I expected. You include at the
moment not tagged features (seperated footways/sidewalks) to a
discussion about cycleway tracks. Please do not use complicity to
attack new ideas.
Let go back to the base of my question:
cycleway=track
=============
Who can give me examples on Google street view of what we have to
concider to be cycleway-tracks?
- Go to Google map Streetview
- find a good example of what you consider to be a cycleway=track
- Use the "Link" in the left upper corner
- Post this link.
Let me start:
http://maps.google.nl/maps?hl=nl&ie=UTF8&ll=52.235698,5.701776&spn=0.006163,0.021136&z=16&layer=c&cbll=52.235696,5.701937&panoid=amiIS_Sdj-ssgyQipVgJ3Q&cbp=12,274.9,,1,4.23
This is a real cycleway track.
-Robert-
-----Oorspronkelijk bericht----- From: Peter Wendorff
Sent: Thursday, January 06, 2011 11:03 AM
To: tagging@openstreetmap.org
Subject: Re: [Tagging] Differences in cycleways
Am 06.01.2011 01:05, schrieb Steve Bennett:
On 6/01/2011 8:56 AM, Robert Elsenaar wrote:
Solution:
============
highway=secundary
name=Duinweg
surface=asphalt
maxspeed=50
cycleway=track
cycleway:surface=paving_stones
cycleway:maxspeed=30
I think this has potential, and could possibly render a lot better
than having a separate highway=cycleway (which, in Mapnik at least,
tends to get buried under the road and not shown at all).
-1
Take the footway (sidewalk or not) as the third part, and the tag count
explodes:
footway=track,
footway:surface=paving_stones
footway:width=1.20
footway:separated=yes (but separated from cycleway? from street?
standing alone?)
Keep in mind, what you forgot, e.g.
:maxheight
:hazard = restaurant_chairs, flower_buckets, newspaper_vending_machines,
bollards,...
and consider the lack of where a way is - is the cycleway next to the
street and the footway at the outer border or the other way around?, is
this changing at the next bus stop,...
Keep in mind, that for each changing tag value the complete street has
to be split up into more OSM ways; leading to an exploding way count
here, too (I know what I speak about, I tried it here).
It's a common issue to have footway and cycleway along a street. Missing
here too is the distinction of the sides, so you can suffix each of the
values above with :left and :right.
To sum up: Mapping this way a street is going to have very much tags,
"worst case" nearly one hundret and some.
That's not comfortable to manage in any editor I know of yet, and it's
very difficult to check for correctness.
I know, the discussion about the multiple-lane-problem is broken
currently, and there was much discussion about that before I came to OSM
approximately one year ago, but I fear, this is again one issue where a
proper method to model multiple lanes of different kind, with different
separation types would be very important.
One situation that this would not cope with, that I see surprisingly
often around here, is where there is both a lane *and* a track.
Typically the lane is somewhat on the narrow side, and the "track" is
really just a footpath with signs designating it as acceptable for
cyclists.
Well - add that to the possible tags above, if you want...
Not sure if this occurs anywhere else, but thought I'd mention it.
I would also suggest that if the above goes ahead, that there be an
alternative mechanism using relations that is considered
"equivalent". So, have a relation that links a track with a highway,
giving some of the above benefits.
+10
But this is usefull only if it's a widely accepted relation type.
regards
Peter
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