On 3/15/2012 6:10 PM, Nathan Edgars II wrote:
How does this work? Do you stop at every house and write down the address?
I mount a camera on the windshield and use JOSM's image plugin to place them on the track, then it's just a matter of looking at the images and identifying addresses, then estimating the position for the address point based on the picture and the GPS track.
I first tried to do this with my cell phone camera, but the aperture control and dynamic range were poor enough that I could only get about half the addresses. It turns out even a cheap P&S works a lot better. Obviously the points aren't going to be perfectly placed on the entrance to the house, but it's as accurate as anything else those of us without pro equipment can really do.
My original tactic was to write down the addresses at the end of each block and use interpolation ways. In a lot of subdivisions around here that works really well because the city forces them to address (mostly) correctly. In other cities where the addressing is less regular it doesn't work so well, in that not all addresses in the range actually exist. The problem with this method becomes apparent when you find that the subdivision you've mapped is too new to have aerial coverage. Too much guessing for me.
The really sad thing is when you get to a new subdivision before there are any houses. No address points at all in that case. ;)
-Nathan _______________________________________________ Talk-us mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-us
