March 1, 2011March 1, 2011

Becoming the Mad

Scientists of

Geocoding…

Hi! I’m Brooke GajownikHi! I’m Brooke Gajownik

Hi! I’m Mike MorrisHi! I’m Mike Morris

OutlineOutlineo The science of geocodingThe science of geocodingo Using your powers for good Using your powers for good

examplesexampleso Cleaning up eccentric dataCleaning up eccentric datao Diabolical use of address locatorsDiabolical use of address locatorso Steps for taking over the world with Steps for taking over the world with

geocodinggeocodingo Questioning authorityQuestioning authority

The Science of GeocodingThe Science of Geocoding

● a GIS operation for converting street a GIS operation for converting street addresses into spatial data as addresses into spatial data as features on a map, usually by features on a map, usually by referencing address information from referencing address information from a street segment data layer. a street segment data layer. (source: ESRI (source: ESRI knowledge base GIS dictionary)knowledge base GIS dictionary)

● What is it?What is it?

● What do you need?What do you need?

● A table of addresses and a reason!A table of addresses and a reason!

Using your powers for good Using your powers for good examplesexamples

● Sewer BillingSewer Billing● Map all customersMap all customers● Track the areas that don’t have customersTrack the areas that don’t have customers● Find homes that are not payingFind homes that are not paying● Increase revenueIncrease revenue

● Public SafetyPublic Safety● Useful to track past & future changes for Useful to track past & future changes for

investigations (burglaries, prowlers, thefts, investigations (burglaries, prowlers, thefts, etc.)etc.)

● Sex offender work and home locationsSex offender work and home locations● Community corrections monitoringCommunity corrections monitoring

Cleaning up eccentric dataCleaning up eccentric data● Clean up unknowns, bad data, suffix’s. Clean up unknowns, bad data, suffix’s.

etc firstetc first● Think about State Roads that use Think about State Roads that use

alternate names and using apartment alternate names and using apartment numbers (or not)numbers (or not)

● For nationwide data (not local) use For nationwide data (not local) use address locator style – US Streets with address locator style – US Streets with City State Zip. City State Zip.

● Populate unassigned zip codesPopulate unassigned zip codes● Performance tip: best when address Performance tip: best when address

table resides on client machine.table resides on client machine.

Unusual suffix decisionsUnusual suffix decisions

When in doubt or for additional help, consult

www.nena.org

What ESRI says about What ESRI says about locatorslocators

Diabolical use of address Diabolical use of address locatorslocators

Diabolical use of composite Diabolical use of composite locatorslocators

Steps for taking over the Steps for taking over the world with geocodingworld with geocoding

● How to get the highest address match How to get the highest address match rates? rates? ● Use a composite locatorUse a composite locator● Rematch interactivelyRematch interactively● Set minimum match score higherSet minimum match score higher● Do exactly what we say! Watch and learnDo exactly what we say! Watch and learn

Refining your selections

A- Automatically matched or rematchedM- Manually matched or unmatched by using buttonsPP- Picked by Point (match to clicked point)PA – Picked by Address (match to closest address)

Geocoding apartmentsGeocoding apartments

Always Always question question authorityauthority

Q & A time….Q & A time….

For additional information:For additional information:

Brooke Gajownik, GISPBrooke Gajownik, GISP

317-776-2461317-776-2461Brooke.Gajownik@hamiltoncounty.in.gov

OrOr

Mike Morris, GISPMike Morris, GISP

317-770-5134317-770-5134Mmorris@noblesville.in.us