[Talk-it] Autovelox

M∡rtin Koppenhoefer dieterdreist at gmail.com
Wed Aug 18 10:25:04 BST 2010


2010/8/18 David Paleino <dapal at debian.org>:
> Esiste la relazione enforcement. Io l'ho usata sull'unico autovelox fisso
> sull'A29:


grazie del link, l'avevo già dimenticato (però votato si all'epoca).
Dice
If there is a single device like a speed camera, create a node next to
or on the highway. Make the node a member of the relation with the
role "device".

If it is a redlight camera, the node can be the one already tagged as
highway=traffic_signals. The device itself is represented by a node
which is member of the relation with the role "device".

Choose a node on the highway from where the vehicles checked come
from. If there is a sign "radar controlled" or "traffic signals ahead"
put the node where the sign is, if there is no sign, estimate a
sensible distance where a driver would need to be warned of the object
if driving with allowed speed. Make this node a member of the relation
with the role "from".

If there is only one certain direction to where vehicles are checked
(like a redlight camera only for vehicles turning left), you can add a
node that becomes member of the relation with the role "to".

Note: Either the device is a node on the way or the to-role is
mandatory. (Otherwise the direction is not always clear).

If there is a large device like a scale for heavy goods vehicles, the
role "device" can also be used on a way or on an area. (The area shall
be connected to the road.)

If there is a traffic light or barrier that stops you if you violated
a rule (because it is dangerous), add the role "force" to that node.

e in Example 3b tratta le macchinette a canto la strada.

ciao,
Martin

http://wiki.openstreetmap.org/wiki/Approved_features/Relation:enforcement



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