On 04/03/2011 12:59, Graham Stewart wrote:
One point relating to Average Speed Cameras:
Don't assume that the first camera is entry into a monitored section
and the next camera exits the monitoring.
This is not always the case.
They can be set up as dual-exit-entry like this:
Enter-A --> Exit-A-Enter-B --> Exit-B (see
http://news.bbc.co.uk/2/hi/7048645.stm )
Or potentially overlapped like this:
Enter-A --> Enter-B --> Exit-A --> Exit-B
So the best we may be able to do is note the presence of the cameras.
Attempting to place them in relations for the individual monitored
sections could be tricky and misleading.
Graham
This is not really an aspect of mapping which interests me: I'm mainly
aware of it, because a local mapper is and has mapped such areas. Here
is one example: http://www.openstreetmap.org/browse/relation/78922
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