From 1ea555ea5c983c054e44df09ae5003f2b5c9706f Mon Sep 17 00:00:00 2001 From: Rhonda Glennon Date: Tue, 14 Feb 2017 11:05:35 -0800 Subject: [PATCH] change first sentence, add links, add TIGER reference --- addresses.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/addresses.md b/addresses.md index 5525236..7431f50 100644 --- a/addresses.md +++ b/addresses.md @@ -28,7 +28,7 @@ With an accuracy of point and an exact match, the confidence score is closer to ## Address interpolation -When you search for an address and and there is not a precise match, interpolation occurs if there are enough known address values in that area. OpenAddresses and OpenStreetMap, which are the primary sources of addresses in the geocoder, provide locations for hundreds of millions of places globally. These sources build a framework for the interpolation, or estimation, of address numbers in areas where there is incomplete data. +When you search for an address and and there is not a precise match, the interpolation technique is applied if the street being queried has any address records at all. [OpenAddresses](data-sources.md#openaddresses) and [OpenStreetMap](data-sources.md#openstreetmap), which are the primary sources of addresses in the geocoder, provide locations for hundreds of millions of places globally. These sources, plus address range data from the [United States Census Bureau's TIGER product](https://www.census.gov/geo/maps-data/data/tiger.html), build a framework for the interpolation, or estimation, of address numbers in areas where there is incomplete data. One form of address interpolation involves drawing a line that connects between the nearest known house numbers and placing the interpolated address within a range on that line. This process may work if the road is straight, but often results in the interpolated point being placed at a distance offset from the road network on curved sections.