Mapping Addresses and Places Flashcards
Transform addresses into locations on a map
The process of converting a feature’s address or other location description into a location on the Earth is called…
Geocoding
What are the three components required for geocoding?
Input data, Locator, and Reference data
What is input data?
Contains the location description and is provided by the user. Geocoding uses input data to place points on a map.
What is a locator?
It ties the location descriptions in the input data to geographic coordinates to place features on a map. Locators can be created so it places features by their street, address, names, landmarks, natural features, or other places and attributes.
What is reference data?
A locator finds matches between the input and reference data and places features on a map. It can refresh a locator whenever your reference data is updated.
What are the three types of locators?
Free, Paid, DIY
What’s an example of a free locator?
ArcGIS Online World Geocoding Service
Describe a paid locator and give an example.
For use behind a firewall; ArcGIS World Geocoder + ArcGIS Street Map Premium
Describe a DIY locator.
You can build it yourself. Can be local tools or online services.
You can base your locator on different types of reference data including…
Building addresses, points of interest, populated places, other locations.
What are the benefits of using a composite locator?
You can use instead of a table of reference data. Composite locators are more efficient and can increase the chances a match will be found and the accuracy of the match results.
Using a locator to find a place by its name
What do you need to find a place using the Place-Name locator?
At least a Name field or attribute at the minimum. For example: Landmarks: statues, famous places
Using a locator to find a place by its name
What do you need to find a place using the Composite locator?
A combination of attributes. Use a composite locator to geocode multiple different description types.
What is the workflow for using a Composite locator?
- Plan
* Dictate the order in which the locator will use each participating source locator - Create
* Identify existing locators or create locators to fill the needs from your plan
* Specify the participating locators and the sequence in the composite locator create tool
* Map the address fields from each participating locator
* Specify the output composite locator name - Use and update
* Republish after every update