Output Address Locator: navigate to your Assignment 3 folder and name the output file as PollutionAddressLocator. ***Note: Do not save it in your geodatabase.*** Click OK. You now have an Address Locator that can be used to geocode addresses. Question 2: Why do we need to create an Address Locator before geocoding addresses? Geocoding addresses do not actually find a specific building with a given address. It operates by estimating approximate position. It does this by comparing the address in the list to the beginning and ending addresses listed for each road segment in the WRIA9_Roads feature class. If the target address is between the beginning and ending addresses for that road segment, it calculates how far along the street the target address could be located. It also knows on which side of the street the target address should be, based on whether the address number is even or odd. Follow the steps below to learn how to perform the task: Add the table PotentialPollutionIncidents from WRIA9.gdb to your map. Go to Customize Toolbars Geocoding to enable the geocoding toolbar. On the geocoding toolbar, click (Geocode Addresses) When the Geocode Addresses wizard opens, select the PollutionAddressLocator as the address locator to use. In the dialog window, select the following setttings: Address table: PotentialPollutionIncidents table Street or Intersection: Address ZIP: ZIP Output shapefile or feature class: navigate to RoadNetwork feature dataset and name the output feature class PotentialPollution_Result. You need to change the “save as type” to “Personal and File Geodatabase feature class” in order for your geodatabase to show in the folder directories. Click the Geocoding Options… button Set Side offset to 15 feet (An offset is the distance from the road centerline that the geocoded point will be placed. An address does not refer to the center of the street, after all. A reasonable value for the offset would be 15 feet). Click OK to close the window.
Output Address Locator: navigate to your Assignment 3 folder and name the output file as PollutionAddressLocator. ***Note: Do not save it in your geodatabase.*** Click OK. You now have an Address Locator that can be used to geocode addresses. Question 2: Why do we need to create an Address Locator before geocoding addresses? Geocoding addresses do not actually find a specific building with a given address. It operates by estimating approximate position. It does this by comparing the address in the list to the beginning and ending addresses listed for each road segment in the WRIA9_Roads feature class. If the target address is between the beginning and ending addresses for that road segment, it calculates how far along the street the target address could be located. It also knows on which side of the street the target address should be, based on whether the address number is even or odd. Follow the steps below to learn how to perform the task: Add the table PotentialPollutionIncidents from WRIA9.gdb to your map. Go to Customize Toolbars Geocoding to enable the geocoding toolbar. On the geocoding toolbar, click (Geocode Addresses) When the Geocode Addresses wizard opens, select the PollutionAddressLocator as the address locator to use. In the dialog window, select the following setttings: Address table: PotentialPollutionIncidents table Street or Intersection: Address ZIP: ZIP Output shapefile or feature class: navigate to RoadNetwork feature dataset and name the output feature class PotentialPollution_Result. You need to change the “save as type” to “Personal and File Geodatabase feature class” in order for your geodatabase to show in the folder directories. Click the Geocoding Options… button Set Side offset to 15 feet (An offset is the distance from the road centerline that the geocoded point will be placed. An address does not refer to the center of the street, after all. A reasonable value for the offset would be 15 feet). Click OK to close the window.
Geog582_Assignment3_Aut2016.docx