SOC 4650 & SOC 5650 - Lecture 15

Slides for Lecture 15 of the Saint Louis University Course Introduction to GIS. These slides introduce concepts related to geocoding tabular data.

Transcript

1. GEOCODING INTRO TO GISC CHRISTOPHER PRENER, PH.D. SPRING 2019 WEEK 15 LECTURE 15
2. AGENDA 1. Front Matter 2. Georeferencing Review 3. Geocoding Basis 4. Geocoding in ArcMap INTRO TO GISC / WEEK 15 / LECTURE 15
3. 1 FRONT 
 MATTER
4. 1. FRONT MATTER ANNOUNCEMENTS PS-06 was due today; problem sets are now done! Please make sure you return feedback by tomorrow to your partner! My feedback will come back tomorrow as well once partners post theirs.
5. REMOTE SENSING IN PRACTICE
6. GEOREFERNCING REVIEW 2
7. LONGITUDE AND LATITUDE Lindell West Pine Mall Clocktower 38° 38' 16.17" N 
 90° 14' 13.492" W
8. DECIMAL DEGREES Lindell West Pine Mall Clocktower -90.237081, 38.637825
9. UTM COORDINATES Lindell West Pine Mall Clocktower 740481.61, 4280208.86
10. LOCAL PLACE NAMES Lindell West Pine Mall Clocktower Morrissey Hall McGannon Hall Queen’s Daughters Hall Wuller Hall
11. STREET ADDRESSES Lindell West Pine Mall Clocktower 3700 Lindell Blvd 3750 Lindell Blvd 3730 Lindell Blvd 3711 West Pine Mall
12. GEOCODING BASICS 3
13. ▸ Most organizations maintain (often vast) quantities of georeferenced data without using any of the standard spatial data structures ▸ Instead, they use street addresses to locate their customers/clients/patients ▸ Typically stored as tabular data (in a database or spreadsheet) 3. GEOCODING BASICS REALITY OF TABULAR DATA 3106 Olive St. 
 St. Louis MO 63101
14. REALITY OF TABULAR DATA Geocoding is the process of taking a street address from tabular data and matching it with an existing, georeferenced point (or polygon) on a map. 3. GEOCODING BASICS 3106 Olive St. 
 St. Louis MO 63101
15. 3. GEOCODING BASICS HOW ARE U.S. ADDRESSES STRUCTURED? Street Number 3106 St. Suffix Olive Street Name St. Louis City Name State MO House Number Odd = Right
 Even = Left Type
16. 3. GEOCODING BASICS HOW ARE U.S. ADDRESSES STRUCTURED? Street Number 3106 St. Suffix Olive Street Name 63103 Zip Code
17. 3. GEOCODING BASICS HOW ARE U.S. ADDRESSES STRUCTURED? Street Number 3106-08 St. Suffix Olive Street Name 63103 Zip Code
18. 3. GEOCODING BASICS HOW ARE U.S. ADDRESSES STRUCTURED? Street Number 3106 St. Suffix Olive Street Name 63103 Zip Code House
 Suffix A
19. 3. GEOCODING BASICS HOW ARE U.S. ADDRESSES STRUCTURED? Street Number 3106 St. Suffix Olive Street Name 63103 Zip Code House
 Suffix F
20. 3. GEOCODING BASICS HOW ARE U.S. ADDRESSES STRUCTURED? Street Number 3106 St. Suffix Olive Street Name 63103 Zip Code House
 Suffix R
21. 3. GEOCODING BASICS HOW ARE U.S. ADDRESSES STRUCTURED? Street Number 3106 St. Suffix Olive Street Name 63103 Zip Code House
 Suffix H
22. 3. GEOCODING BASICS HOW ARE U.S. ADDRESSES STRUCTURED? Street Number 3106 St. Suffix Olive Street Name 63103 Zip Code House
 Suffix 1/2
23. 3. GEOCODING BASICS HOW ARE U.S. ADDRESSES STRUCTURED? Street Number 3106 St. Suffix Olive Street Name 63103 Zip Code Prefix
 Direction N
24. 3. GEOCODING BASICS HOW ARE U.S. ADDRESSES STRUCTURED? Street Number 3106 St. Suffix Olive Street Name 63103 Zip Code Suffix
 Direction N
25. 3. GEOCODING BASICS HOW ARE U.S. ADDRESSES STRUCTURED? Street Number 3106 Avenue Prefix Type B Street 
 Name 63103 Zip Code
26. 3. GEOCODING BASICS DATA QUALITY IS ESSENTIAL 3106 St. Olive 63103 3106 St. Oilve 63103
27. 3. GEOCODING BASICS DATA QUALITY IS ESSENTIAL 3106 St. Olive 63103 3106 St. Oilve 63103 St. 63103 1309 7th N 1309 Seventh St. 63103 N
28. 3. GEOCODING BASICS DATA QUALITY IS ESSENTIAL 3106 St. Olive 63103 3106 ST Oilve 63103 3106 Street Oilve 63103
29. 3. GEOCODING BASICS DATA QUALITY IS ESSENTIAL 3106 St. Olive 63103 Is there also an Olive Blvd.? Are there two Olive Streets in the same municipality 
 but in different zip codes? What about Olive St. in an adjacent municipality? Does this address even still exist?
30. GEOCODING IN ARCGIS 4
31. ▸ A database of street addresses for a given location (typically a municipality) ▸ Think of this as a digital map book - it will match a street address with a given page (x,y coordinate) 4. GEOCODING IN ARCGIS ADDRESS LOCATORS
32. 4. GEOCODING IN ARCGIS ADDRESS LOCATORS 3106 St. Olive 63103
33. 4. GEOCODING IN ARCGIS ADDRESS LOCATORS 3106 St. Olive 63103 Street Number 3106 St. Suffix Olive Street Name 63103 Zip Code “parsing”
34. 4. GEOCODING IN ARCGIS ADDRESS LOCATORS Street Number 3106 St. Suffix Olive Street Name 63103 Zip Code “matching” 3106 Olive 63103 3106 St. Olive 63114 3106 St. Olive 63103 ✓
35. ▸ Geocoding can be done using a locator that you build yourself in a geodatabase ▸ Geocoding can also be done using different web services, including ESRI’s ArcGIS Online World Geocoding Service (requires a subscription) 4. GEOCODING IN ARCGIS ADDRESS LOCATORS
36. ▸ Geocoding can be done using a locator that you build yourself in a geodatabase ▸ Geocoding can also be done using different web services, including ESRI’s ArcGIS Online World Geocoding Service (requires a subscription) ▸ Composite locators combine multiple locators 4. GEOCODING IN ARCGIS ADDRESS LOCATORS
37. 4. GEOCODING IN ARCGIS CREATE AN ADDRESS LOCATOR ▸ Primary table contains references to address elements ▸ Alternate name tables can contain additional addresses that may be out of date or colloquialisms - In some locations, streets with names may also be numbered with a state or county road number (Chouteau Ave. is also MO-100) - Cole St. in Midtown used to be named Wash St. ▸ Alias tables can contain common place names for addresses - 3700 Lindell Blvd. is Morrissey Hall
38. 4. GEOCODING IN ARCGIS CREATE AN ADDRESS LOCATOR ▸ Locator styles are pre-defined ways to search for an address within a locator Style Spatial Data Type Reference Type Search Parameters US Address—Dual Ranges Lines Address range for both sides of street segment All address elements in single field US Address— Single House Point or Polygon Each feature represents an address
39. STREET RANGE DATA
40. STREET RANGE DATA
41. STREET RANGE DATA
42. STREET RANGE DATA
43. SINGLE HOUSE DATA
44. SINGLE HOUSE DATA
45. ▸ Initial Steps: 1. Create geodatabase or use an existing one (pictured) 2. Make sure you have the appropriate sets of resource data added to your map (I have had better luck with shapefiles than feature classes) 5. GEOCODING IN ARCGIS CREATE AN ADDRESS LOCATOR
46. ▸ Initial Steps: 1. Create geodatabase or use an existing one (pictured) 2. Make sure you have the appropriate sets of resource data added to your map (I have had better luck with shapefiles than feature classes) #. SECTION NAME CREATE AN ADDRESS LOCATOR
47. ▸ Build the Locator: 3. In your new geodatabase, select the Address Locator… option under New 4. GEOCODING IN ARCGIS CREATE AN ADDRESS LOCATOR
48. 4. GEOCODING IN ARCGIS CREATE AN ADDRESS LOCATOR
49. 4. GEOCODING IN ARCGIS USE AN ADDRESS LOCATOR
50. 4. GEOCODING IN ARCGIS USE AN ADDRESS LOCATOR
51. 4. GEOCODING IN ARCGIS USE AN ADDRESS LOCATOR
52. 4. GEOCODING IN ARCGIS USE AN ADDRESS LOCATOR