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TAZ Delineation - Webinar

Presentation Overview. Notification and Shapefile downloadInstalling the MTPSRunning the MTPS for the first timeTAZ and TAD startup optionsImporting Block Equivalency Files (BEFs) into MTPSMTPS Tools and ToolboxesModifying TAZ/TAD geographyVerification Toolbox in MTPSSwitching between TAZ an

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TAZ Delineation - Webinar

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    1. TAZ Delineation - Webinar TAZ Team US Census Bureau February 25 and 28, 2011

    2. Presentation Overview Notification and Shapefile download Installing the MTPS Running the MTPS for the first time TAZ and TAD startup options Importing Block Equivalency Files (BEFs) into MTPS MTPS Tools and Toolboxes Modifying TAZ/TAD geography Verification Toolbox in MTPS Switching between TAZ and TAD delineations Resetting and Changing TAZ/TAD delineations Reporting Changes FTP Changes to the Census Bureau Dividing up work areas 2

    3. Notification and Shapefile Download States released on a flow basis Expected start mid-March 90 days to complete work from initial email Email sent to participants with SetupFile when data is available Download the MTPS software Call for username and password Create an ‘MTPS_software’ folder and unzip the software to this location 3

    4. Notification and Shapefile Download Download shapefiles from the web http://www.census.gov/geo/www/pvs/TAZ_PVS.html Select download each county in the MPO/State DOT Creates a ZIP for each county file containing all shapefiles and required data files Create a ‘TAZ_layers’ folder on your C: drive Copy and extract each ZIP files contents to the ‘TAZ_layers’ folder Copy SetupFile and file to the ‘TAZ_layers’ folder 4

    5. Notification and Shapefile Download 5

    6. Installing the MTPS Select the icon in your ‘MTPS_software’ directory Install the program using the default settings 6

    7. Installing the MTPS 7

    8. Setting Up the Data MTPSData folder The software install should have created the MTPSData folder and copied all data to this folder 8

    9. Running the MTPS Start Menu ? Programs ? MAF/TIGER Partnership Software Password ‘TAZ’ (all CAPS) Load time (few minutes to a few hours) User Information Startup Choices 9

    10. Running the MTPS Computer Based Training (CBT) Basic skills and TAZ 10

    11. Running the MTPS Computer Based Training (CBT) Basic skills 11

    12. Running the MTPS Computer Based Training (CBT) TAZ 12

    13. Running the MTPS Go Directly to MAF/TIGER Partnership Software (MTPS) 13

    14. TAZ Startup Options 14

    15. TAD Startup Options 15

    16. TAZ / TAD Startup Options 16

    17. Importing Block Equivalency Files (BEFs) What is a BEF? File in DBF, CSV, or TXT format that allows the user to import their TAZ/TAD delineation A BEF can be created in ArcGIS or another preferred GIS What is required in a BEF? DBF, CSV, or TXT file format Contains attribute fields for the block ID and TAZ/TAD codes Place directly in MTPSData folder 17

    18. Importing Block Equivalency Files (BEFs) How can I create a BEF? The BEF can be created in ArcGIS or another preferred GIS It must be based on the 2010 Census tabulation blocks 2010 tabulation block shapefile are currently available if participants wish to get a jump start on their BEF files Why won’t my BEF file import into MTPS? Duplicate block IDs BEF is not of the correct file type or the name is not formatted correctly Not in MTPSData folder Multiple BEFs in DBF format Modified CSV in Excel 18

    19. Importing Block Equivalency Files (BEFs) BEF Examples 19

    20. Importing Block Equivalency Files (BEFs) BEF Examples 20

    21. Importing Block Equivalency Files (BEFs) Adding the BEF to MTPS 21

    22. MTPS Tools and Toolboxes The MTPS contains several tools and toolbars that the user should be familiar with Main Menu Standard toolbar Tools toolbar TAZ toolbox 22

    23. MTPS Tools and Toolboxes Main Menu 23

    24. MTPS Tools and Toolboxes Standard Toolbar 24

    25. MTPS Tools and Toolboxes Tools Toolbar 25

    26. MTPS Tools and Toolboxes TAZ Toolbox 26

    27. Modifying TAZ and TAD Geography in MTPS Selecting a Target Area Selecting a Source Area Selecting a Selection Layer TAZs TADs Select by pointing tool Select by shape Creating a new entity (TAZ and TAD) Modifying a TAZ or TAD code Population and worker counts 27

    28. Modifying TAZ Geography in MTPS Selecting a Target Area Use target area pointer tool or target area dropdown 28

    29. Modifying TAZ Geography in MTPS Selecting a Source Area The source area is a specific location to which area can be added from 29

    30. Modifying TAZ Geography in MTPS Selecting a Selection Layer The selection layer can be changed to block, block group, or census tract depending on the area that should be added to the TAZ 30

    31. Modifying TAZ Geography in MTPS Select by Pointing Allows the user to select one unit of geography (tract, block, etc) to add to a TAZ Better for selecting larger geography like tracts 31

    32. Modifying TAZ Geography in MTPS Select by Shape Allows the user to select all geographic units (tracts, blocks, etc) within a defined polygon Better for selecting smaller geography like blocks 32

    33. Modifying TAD Geography in MTPS Only the selection layer differs from what is used in modifying TAZ geography Only TAZ 2010 is an option 33

    34. Creating New TAZ/TADs in MTPS Select New Entity as the target area and add geography Enter up to an 8-character alphanumeric code 34

    35. Modifying TAZ/TAD Codes in MTPS To modifying an entire TAZ/TAD code select display area data, select the TAZ/TAD and enter a new code in the attribute box 35

    36. Population and Worker Counts Population and worker counts are modified each time the user selects a new geographic unit to add to a TAZ or TAD 36

    37. TAZ and TAD Verification Required checks Unique codes (should never fail) These will fail for contiguity rather than unique codes Nesting (TADs only) Suggested checks Unassigned area Minimum population (600 TAZs, 20000 TADs) 1200 recommended for TAZs; software flags those less than 600 Contiguity Compactness 37

    38. TAZ and TAD Verification Unassigned Areas 38

    39. TAZ and TAD Verification Nesting (TADs only) TAZs must nest within TADs 39

    40. TAZ and TAD Verification Minimum population TAZs: 600 (suggested 1200) TADs: 20000 40

    41. TAZ and TAD Verification Contiguity TAZs/TADs should be contiguous with some exceptions (e.g. islands, etc) 41

    42. TAZ and TAD Verification Compactness Shape index of less than 0.15 (ratio of area of polygon to area of minimum surrounding circle 42

    43. Switching between TAZ and TAD Delineation Switching from TAZs to TADs Choose ‘Delineate TADs’ TAZ menu TAZ delineation should be complete Switching from TADs to TAZs Any changes to TAZs after TADs are delineated may require additional updates to TADs Nesting issues 43

    44. Resetting TAZ/TAD Delineation 44

    45. Changing TAZ/TAD Delineation 45

    46. Reporting Changes TAZ Menu ? Report Changes Both TAZs and TADs must be verified (software might ask to verify TAZs/TADs twice) Creates a ZIP file in the MTPSData folder Contains shapefiles and BEF files for each county in the MPO coverage 46

    47. FTP Changes to Census Bureau Secure Send-a-File Utility https://secure.census.gov/cgi-bin/sendfile Enter username and password provided in participant guidelines 47

    48. Splitting Work Areas Modifying the SetupFile Instructions provided in participant guidelines Primary participant must complete verification on entire MPO before submitting to the Census Bureau XML file required for the MTPS to function Double-click the SetupFile to open 48

    49. Splitting Work Areas Modifying the SetupFile View ? Source 49

    50. Splitting Work Areas Modifying the SetupFile Edit the CoreCountyCoverage and save (repeat as necessary to create multiple SetupFiles) File name must include SetupFile at the beginning 50

    51. Splitting Work Areas Dividing work administratively Primary participant divides work up within a single county Individuals will complete their delineation assignment Each will have unassigned area outside of their work area Primary participant should collect all BEF files and import into MTPS for review on complete coverage Original setup file should be used Verification on entire coverage Primary participant submits ZIP file with output to Census Bureau 51

    52. IMPORTANT! Should you encounter any software errors (such as the one below) during delineation, please contact the Census Bureau immediately. Do not continue working! If you do encounter a software error, follow the procedures in your participant guidelines so that we can fix the error without loss of work. 52

    53. Questions? TAZ Team geo.taz.list@census.gov 301.763.1099 53

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