At the conference next month I'm presenting on Address Points and their usage in applications. I find Address Points a very useful dataset for making simple, easy to use applications and versatile for statistical aggregations; things like population estimates and crime. Johnson County (Locations Services) and Overland Park (What's Happening in My Neighborhood) have had applications based on Address Points for years. I'm just wondering why other organizations haven't used Address Points to create similar applications. And what others are using Address Points, if at all.
We use address points in a Land Evaluation System model to determine # of residences within a certain distance of land someone wants to rezone from Ag.
Can you expand more on your statement "I'm just wondering why other organizations haven't used Address Points to create similar applications."? Are you asking why organizations aren't creating web apps? Or why organizations are creating web apps and not using address points in their search functionality?
I'm wondering why organizations aren't using Address Points as a basis for an application. If you add columns and calculate values on the Address Points, like parcelid, zoning, school district, ward, flood plain, etc.. Then all the application has to do is respond to a search by the user and all that information can be displayed. The user does not have to search, then click around to find the information they are after.
I think that the organizations that have web apps (Douglas County, City of Lawrence, Shawnee County, Riley County, Johnson County, DASC, and more) are likely making use of address points in some way. I know it's an option to search by address in all of our web apps, and the first hit always goes to the address point layer. (We prefer string searches to geocoders, and that seems to be the direction that Esri is going.)
I did an analysis in 2017 to see how many Kansas counties had a web GIS presence, and of those who did, how many were doing it in-house vs. contracting the work with an outside provider. Results:
A good chunk of those using an "outside provider" are linking to DASC's ORKA system as their only form of web GIS.
I don't think it's really a question of "why don't we build apps from address points" as much as it is that our member organizations don't have the resources (however you define that word) to produce their own web apps. We had tremendous interest in an ArcGIS Online course that we offered last summer, so I think the desire to put data on the web is out there.
Thanks for the the analysis info. I agree that that having the resources to create a custom application is a luxury. The application I have is purely, out of the box ArcGIS Online. The process (Python) of adding spatial attributes to address points is what takes added expertise.
Also, I was recently made aware of the "Zone Lookup" configurable map on ArcGIS Online/Portal. If you have a web map with your various lookup zones added and a geocoder (based on your address points) you can make a quick web app for lookup without having to do much custom coding.
I also saw that tool and have played with it. The drawback I see, is you have to have all the "zone" layers in the map. So if you have a dozen or more layers you want to use, does that hurt performance and usability?
I have also duplicated that tools functionality with Arcade using he Intersect function. The same applies, where you need all the layers in the map.
I think just about every county in Kansas has address points now as part of the NG911 data. DASC Provides a geocoding service based on those address points at http://services.kansasgis.org/arcgis4/rest/services/Geocoders - more details are available on their website under catalog/services/Kansas Geocoder.
Obviously, this doesn't give you access to address points unless you already have a list of addresses that can be geocoded to points. If and when Kansas queues into the national address database, all the information should be there to create or use address points for application development purposes.
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