[Tagging] Carriageway divider

Fabrizio Carrai fabrizio.carrai at gmail.com
Sun Aug 19 10:44:21 BST 2012


After a short discussion on the italian talk, I would move the discussion
in this list. After some tests  with OSRM, I missed the availability of a
tag to mark the continuos (or discontinued) line that divide the lanes in
several single carriageway.

In my opinion this is an important indication to the routers to avoid
illegal turns across a road. A typical useful application case is a road
with many side road [2]. Actually the problem is solved with several turn
restriction relations, one for each side way. Tagging the main way with
"divider=solid_line" the problem would have been solved in a easier way,
also reflecting the real status of the road.

Indeed a "Divider=solid_line" proposal [3] was already presented . I'm
would revamp such proposal.
What is your opinion ? Is there any router developer here ?

Ciao
Fabrizio

[1] http://map.project-osrm.org/
[2]
https://maps.google.it/maps?q=Via+degli+Acquedotti,+Livorno,+LI&hl=it&ll=43.559379,10.339882&spn=93.817658,239.941406&sll=43.581112,10.339097&sspn=0.095626,0.234318&oq=via+degli+acque&t=v&hnear=Via+degli+Acquedotti&z=3&layer=c&panoid=AJFk0KCBWPVtT0itjdDSVw&cbll=43.559379,10.339882&cbp=13,-511.08058985009006,,0,19.495970893735887
[3] http://wiki.openstreetmap.org/wiki/Proposed_features/Divider
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