Geocoding Options

The options in the Geocoding category enable you to control how a location's coordinates are determined. The following sections cover the geocoding global defaults options, which are available for all countries, and the country-specific geocoding options, which apply to a subset of countries.

Global Defaults in Management Console

You can create overrides for some of the global default options on a per-country basis. These options have a next to the Country column value. For more information about how to create overrides, see Setting Country Overrides.

If you modify a global defaults option, then that selection is applied to all countries and cannot be changed on a per-country basis. Subsequently, if you select a country and view its options, the modified global defaults option will be inactive in the GUI.

Option Name	Country Support	Description
Type of Geocode	All	There are different ways that an address can be geocoded. The following lists the geocoding types from the most accurate to least accurate. The support for these geocode types depends on the type of data available in your configured geocoding dataset(s). Refer to your country's section to locate geocoding level support information. Address The geocode is the street address. Depending on data and match quality, it can be a street centroid, interpolated house address, or a point address. Default. Postal The geocode is the centroid of a postal code area. Geographic The geocode is the centroid of a geographic area; for example, a city, suburb or village.
Use Address Point Interpolation	All	Address point interpolation is a patented process that results in a more accurate interpolated point. It improves upon regular street segment interpolation by using point data in the interpolation process, as opposed to using street segments alone. Default = disabled. Note: Address point interpolation requires both a street-level and a point-level geocoding dataset. Note: For USA - This feature is not supported with point addresses in Auxiliary files. The following illustration shows how address point interpolation works. In the example, the input house number is 71. The geocoding database contains address points for 67 and 77. The street segment has a range of 11 to 501. With address point interpolation, the input house number 71 is interpolated using the points of 67 and 77. Without address point interpolation, the interpolation is performed with the street segment end points of 11 and 501, resulting in a far less accurate result.
Prefer PO Box over Street		For countries that support PO Box geocoding, this option allows you to prefer to match to PO Boxes before street addresses.
Fallback to postal centroid	All	When an address-level geocode cannot be determined, attempt to return a ZIP Code centroid. Default = enabled. Note: For USA - This option is ignored if you set Match Mode to CASS.
Fallback to geographic centroid	All	When an address-level geocode cannot be determined, attempt to return a centroid of a geographic area. The geocoder returns the most precise geographic centroid that it can based on the input. For example, if the input contains a valid city and state, a city centroid would be returned. Default = enabled.
Fallback to world geocoder	All	When an address-level geocode for a country-specific geocoder cannot be determined, the search falls back to the world geocoder if world geocoding data is configured. Typically used for countries that do not have geocoders or if that country's data is not present. Default = disabled.
Point Positioning	All	Street Offset Specifies the offset distance from the street segments to use in street-level geocoding. The offset distance is used in street-level geocoding to prevent the geocode from being in the middle of a street. It compensates for the fact that street-level geocoding returns a latitude and longitude point in the center of the street where the address is located. Since the building represented by an address is not on the street itself, you do not want the geocode for an address to be a point on the street. Instead, you want the geocode to represent the location of the building which sits next to the street. For example, an offset of 50 feet means that the geocode will represent a point 50 feet back from the center of the street. The distance is calculated perpendicular to the portion of the street segment for the address. Offset is also used to prevent addresses across the street from each other from being given the same point. Default value = 7 meters. The following diagram shows an offset point in relation to the original point. You can select either Feet or Meters for your unit of measurement.
Point Positioning	All	Corner Offset Specifies the distance to offset the street end points in street-level matching. This value is used to prevent addresses at street corners from being given the same geocode as the intersection. Defines the offset position of the geocoded point with respect to the corner. Default value = 7 meters. The following diagram compares the end points of a street to offset end points. You can select either Feet or Meters for your unit of measurement.

Country-Specific Geocoding Options

You cannot set overrides for these options.

Option Name	Country Support	Description
CalculateCenterlineProjectionofPoint	AUS CAN PRT USA	Computes the closest point on the street from the parcel point. Default = disabled. Note: This feature requires that a point-level geocoding dataset is installed.
PointPositioning	AUS CAN PRT USA	Centerline Offset Centerline matching is used with point-level matching to tie a point-level geocode with its parent street segment. This functionality is useful for routing applications. The centerline offset specifies the distance to move the point from the street centerline toward the parcel point. Default = 0 meters. You can select either Feet or Meters for your unit of measurement. Note: Centerline matching requires that a point-level geocoding dataset is installed.
ZIPCodeCentroidLevel	USA	A ZIP Code centroid match returns the center point of an area defined by one of the following types of ZIP Codes: Any Returns the most accurate ZIP Code centroid match found. Default. 9-Digit ZIP Returns the center point of a ZIP + 4 Code area. 7-Digit ZIP Returns the center point of a ZIP + 2 Code area. 5-Digit ZIP Returns the center point of a ZIP Code area. This is the least accurate of the ZIP Code centroids.
PreferPOBoxoverStreet	CAN GBR FRA	For countries that support PO Box geocoding, this option allows you to prefer to match to PO Boxes before street addresses.