Hi Felix,
My current approach is to evaluate the results of the style, so
it is up to the author to decide what
a pedestrian-only way is.
Another point is that we don't need the check for ways which
can't be accessed
by bike. I am aware that these checks must be ignored when a
special cycling
map is created (or any other special map, we just have to find
out meaningful
option names)
I am trying to produce test data to find out in what case Garmin
prefers a small detour,
this should help to find concrete rules.
Gerd
To:
mkgmap-dev@lists.mkgmap.org.uk
From:
extremecarver@gmail.com
Date: Tue, 11 Aug 2015 10:44:06 +0200
Subject: Re: [mkgmap-dev] sharp angles and routing
Well - what is a strict pedestrian only way?
highway=pedestrian - often can be used with bikes too (going
slower)
highway=footway -- often still outside cities and used for
mtbiking though maybe not allowed.
highway=path & bicycle=no ---> very often nice mtbike
trails in countries where mtbiking is mainly forbidden like
Baden-Wuerttemberg or Austria.
And yeah - oneways could be excluded - but needs some care to
not exclude them (for cycling maps) if oneway:bicycle=no;
bicycle:oneway=no; oneway:bicycle=both; ( cycleway=* &
cycleway!=oneway ) would be the most common keys which mean
cycling against oneway direction is allowed.
For me excluding all ways that get tagged road-class=0 or 1,
and road-speed=0 could be excluded (but sometimes I use
continue and double ways so it exists with say road-class=4,
road-speed=2 as well as road-class=0, road-speed=0 in order to
get me through sharp turns - if the sharp angle fixing would
work well - maybe I could drop this).
On 11.08.2015 09:52, Gerd
Petermann wrote:
Hi Felix,
okay, I just try to find some criteria so that we find
those nodes + arcs which really cause
trouble. A lot of sharp angles are between oneway roads
which don't allow traveleling
the sharp angle.
I think that also means that I can add code to ignore
sharp angles on pedestrian-only
ways.
Gerd
Date: Tue, 11 Aug 2015 09:39:11
+0200
From:
extremecarver@gmail.com
To:
mkgmap-dev@lists.mkgmap.org.uk
Subject: Re: [mkgmap-dev] sharp angles and routing
Well - not in Pedestrian mode. I meant if you
design a map with road-class=4 as preferred way for
pedestrians... Then of course using a non pedestrian
profile for routing so it chooses road-class=4 or 3
preferably.
For Pedestrian mode chosen - there is no time penalty
for sharp turns - though I did not test if it would
prefer ways that point towards the destination at
intersections.
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--
keep on biking and discovering new trails
Felix
openmtbmap.org & www.velomap.org
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