Parcel Address Locator

[JKarste]

Hi,

I am trying to locate all school parcels. I have county parcel data and a school address list. When I use N. America or US Streets Address locators the school points are not within the parcels - sometimes not even near. I need the points to be located within the parcel so that I can select out the school parcels. I built an address locator for one of the counties using the parcel addresses but it was a bit labor intensive getting the addresses standardized between the county parcels and the school addresses. Plus, the match rate was only 50%. I need to do this for multiple counties. Any suggestions on how to go about this?

Thanks.
Jessica

[ShanaBritt]

The ArcGIS Online address locators that are available in ArcMap are not based on parcel data, so the returned point will get matched to the street segment with a side offset for the side of the street the address is matched to or to where the driveway meets the street if the address is matched using the US_RoofTop locator of the composite online 10.0 North America Geocode Service. The 10.0 North America Geocode Service is a composite address locator and when addresses are matched using the US_RoofTop locator the Disp_Lon and Disp_Lat fields will be populated in the geocode result and represent the centroid of either the building or parcel to which a given address is associated and will not be directly located on a street segment.

North American Address Locator (ArcGIS 10 style)

If you want to get the addresses to match to the centroid of the parcel, you would have to create an address locator using the Single House style with the parcels as the reference data. I�??d suggest you log something with Tech Support to have someone take a look at your data and assist with increasing your match rate.

-Shana

[JKarste]

Shana, Thanks for the help. The North American Address Locator did not work for me. It defaulted to the streets address locator the majority of the time - I had only a handful of addresses actually use the roof_top locator. I did get my parcel address locator to have a higher match rate  - 73% - so better but still not great. The problem is that I will have to create a unique address locator for each county. Not impossible, just very labor intensive. Jessica

[DanielErklauer]

You could do a reverse address locator search on your parcel data using the esri address locator.   It will create a new address field for you in the parcel shapefile. Then you could join the school data to your parcel data based on the address fields.  Don't forget to make sure you are using the same street naming convention in your tables before you try to join them (i.e. Main St vs. Main Street)  you may have to do some find and replaces using field calculator to "polish" the two tables.  This method will net you a 100% match rate.


The reverse locator is insanely slow especially if you are using county parcel data and pulling from ESRI's online address locator.  So I recommend that you create a model to do them all for you and let it run over the weekend.