I want to create some POIs by looking at Google Earth and using the coordinates found there to tag the POI. I then want to reverse geo-code the street address. I have used this site http://ashburnarcweb.esri.com/livesamples/v2/reversegeocodin... in the past. I am just wondering if anybody else here has done this and, perhaps most importantly, how can I verify the reverse geo-coded address? I realize that it simply approximates a street address based on the coordinates, but I want to take the next step and determine what the correct street address is. In my home area it is fairly simple because I can go to my county property records web site and find the street address there, but not all counties have the information available on line. I have to imagine that there some web site out there that verify if a given street address is a legitimate assigned address. I know when people applied for digital TV coupons there was some sort of means of verifying that the addresses entered was a legitimate address.
It looks like this site will verify addresses, has anybody tried this? http://www.melissadata.com/lookups/addressverify.asp The missing link, of course, is still how to I match the correct street address to a home or business found on Google Earth?
My method is to locate the addresses in Google Earth, export as a .kml file, import using GeePeeEx Editor, save as a .gpx file then use the POI Loader.
GeePeeEx Editor will do Geocoding directly and indicate the level of accuracy.
If you have the phone number, do a search on it and use the address from the criss-cross directory. (Entering the phone number into any of the popular search engines will give you the billing address which is usually the street address.)
Summermugs comments about GeePex are correct. It's a great program and is worth the $18 or so to get it. I enter a coordinate and then go to the map in satellite mode. assuming, it's in an area with good resolution, I then drag the indicator to the exact location and update.
There is a free program called Extra POI, but I like the map in GeePex is five time larger than ExtraPOI and it has the bugs ironed out.
For what it's worth I've just put my latest version of an Excel add-in (it's free) up at:
I made it to help with editing large csv files and gpx files before finishing them up with either GeePeeEx or Extra POI Editor. It has a few commonly used functions and will geocode or reverse geocode using the Google Maps API (not Google Earth). Might be of some help to you also. There's no built-in map, but I use one of the two mentioned progs before using POI Loader anyway.
I went to the address verify link and tried a few addresses I know of, and some I knew WOULDN'T verify. It seems to work well, but it has links back to Virtual Earth, Google Maps, etc, and the locations of the pins are off. This might or might no be an issue.
There is also this address verifier and perhaps this is where Melissa Data gets some of their information from http://zip4.usps.com/zip4/welcome.jsp
For what I am interested in right now, the free reverse geo-coding sites that I have found on-line don't seem to be accurate enough for some very rural addresses. I am trying to determine where the problem lies and I think it is at the local level where they assign street addresses. For what I am working on right now it would be nice to look at online property records that would match the actual known street address to GPS coordinates, but I can't seem to find that information for the area that I am interested in on-line. I would think that the information must be available somewhere because if somebody calls 911 they would need to match a street address to GPS coordinates, but I can't seem to find anything so far that taps verified addresses to GPS coordinates.
Not all counties have their data available online, and calling 9-1-1 for their MSAG (Master Street Address Guide) info isn't always the way to go. You need the business line into the 911 center rather than one of the n-1-1 numbers.
Another place to contact would be the county department of public works. They would have all the map data and should also be able to get you the address for blocks. They may have billing records listing the individual addresses on a street, but they probably will not provide any info about the occupant at that address even if it is a commercial building.
I have a list of most public libraries along I-5 in Oregon. I had a list of street addresses and found the Lat/Long in Google Earth. I copied them by hand and am about to create a file for POI.
Haven't done that yet because I need to read up on how it is done. Garmin doesn't have any software for the Geko 201 (even though their manual says its available)
Is a list of libraries (and free WiFi) of interest?
I was using Google Earth to grab the coordinates for several locations. From following other threads on this site it seems that the best way is to use the location where the apron meets the road rather than a point at the far end of the parking lot near the door to establish a POI that can be routed to or works properly with one of the alerts.
In most cases this point is very visible using Google Earth. However, there are times where they have driven down that road and taken snapshots at intervals along it and there is a line representing the route with a string of cameras superimposed on the image. If the line is running along the other side of the ditch, are the coordinates for the line or for the image more accurate?
This could make the difference for Jack reporting that the destination is on the left when it really is on the right. Any opinions?
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