The variation of drawing and setting tags.
1. People draw in the carriageway road as a wayline. Wayline middle of the
road. Exactly, where it is.
1.1 Then they decided that there is a sidewalk, on the right, tagging
sidewalk=right, this says there is somewhere a sidewalk on the right next to
the road. But not exactly, where it is.
2. People want to drawn in the sidewalk as a wayline next to the road, in the
middle of the sidewalk, safe walking route. tag it: highway=footway
footway=sidewalk. Best is to connect it !! correctly for routingpurpose!!, that
was there goal. (kids routing on the sidewalk, the routing track line lays in
the middle of the sidewalk, no complaints parrents.)
2.1 On the carriagewayline, the tag sidewalk=right is changed to
sidewalk=separate. Because, routing is drawn in correctly on the sidewalk,
routing could use that, then not on carriage road for pedestrian.
2.2 Also on the road wayline, foot=use_sidepath is set. !! All when
routingconnections is well done !! Or when traffic_sign foot prohibited, foot=
no. The routing know now it is more legal.
3. People want to draw in the sidewalk as a area. then the tag:
area:highway=footway footway=sidewalk is set. Topographic visualisation.
All these variation of drawing must fit together.
What I wrote: inside the drawmethod 3 polygon: (area:highway=footway
footway=sidewalk ) only drawmethod 2 lines can be drawn in with that specific
tag: highway=footway footway=sidewalk, because the way line is drawn in the
middle, there is a perpendicular part from the middlewayline to the outline of
the polygon, where the barrier kerb is.
At this point you step on the road, there comes this new tag in operation, tag:
highway=footway footway=link or better *=connection, you walk further on the
road. These are T connections !!
There is one exception:
A. When you have a cross X connection, we speak of a crossing.
When the polygon is crossed with a wayline by a road crossing! (mind
turning)
Your problem drawing at a service (driveway). @ Markus
The choice, at the polygon, is it an area:polygon =service or a area: polygon
=footway.
drawmethod 3 polygon: (area:highway=footway footway=sidewalk )
Now you must set your mind to a new thinking, 180 degrees, what we used to do.
Normaly, the pedestrian crossed the road. We set footway=crossing.
BUT,
image example:
https://images.mapillary.com/3qPJ4v8tao8cVmYzTbuoJg/thumb-2048.jpg
location :https://www.mapillary.com/map/im/3qPJ4v8tao8cVmYzTbuoJg
What you see is that the sidewalk footway surface at the driveway has been
extended, on-going. Same paving as all the footway. 30x30 paving stones. It is
the footway.
Then the polygon is drawn in as a area:highway=footway footway=sidewalk
But at a service (driveway), there the car crosses the footway. The car must
always give priority to the pedestrian.
The footway is more important then the service way.
So the wayline highway=service gets “service=crossing” inside this polygon
(area:highway=footway footway=sidewalk). That is the exception !
The driveway construction is here with a driveway kerb. But could be else too.
Decision of the mapper.
The on-going pavement of the footway but also on a cycleway, priority of way,
gives a different relationship to each other, ending up in saying
service=crossing
In the Netherlands we have the privilege, to use Goverment data, license agreed
with OSM.
(Site under construction) Sitemap with layers where we have a agreement on.
http://mijndev.openstreetmap.nl/~allroads/NLOSMOK/OSMOKNL/OSMOKNL.html
Zoom in, then check on, BGT standaard V2, we could use these polygons for
Openstreetmap.
See the pink colors polygon these are mostly sidewalks in a village town.
Then you see where sidewalks are on-going, and where a pedestrian must cross
the road.
We now use these BGT layers to line out Openstreetmap highways waylines, this
is more accurate then doing it with aerial
(note: use map overpass uncheck with much panning and zooming)
Combining these variation of drawing in, these wayline footway=* connecting
(link) could be used for T connections. From kerb to middle carriage road
wayline.
perpendicular: footway=sidewalk, go on the footway left to the kerb. The
outline of the polygon.
At the kerb a disabled person must get the message, step on the road and follow
the road to the right. Is there, this new value helping? You do not want that a
audio message say, step on the footway and follow the footway. (this is only at
a crossing)
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