Metadata: Transportation Analysis Zones 2000

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Transportation Analysis Zones 2000

This page last updated: 05/04/2012
Metadata created using Minnesota Geographic Metadata Guidelines

Metadata Summary

Originator	Metropolitan Council
Abstract	Transportation analysis zones are subdivisions of geographical areas that are delineated for land use and travel analysis purposes. This system is a modification of that developed jointly by the Minnesota Department of Transportation and the Metropolitan Council in late 1989, referred to as Transportation Analysis Zones, 1990 or TAZ1990. The principal difference between the 1990 and 2000 systems is that 27 TAZs were subdivided into smaller units, thus expanding the total number of TAZs from 1165 to 1201. Notes: - The geography for this file is based on the Twin Cities Regional Travel Demand Forecast Model. Attributes included are population, households, total employment, retail employment, and non-retail employment for the years 2000, 2010, 2020 and 2030. - As of early 2004, this set of TAZs became the official TAZ system for travel demand modeling, socioeconomic forecasts and community comprehensive plan development, in addition to its existing use for the 2000 Census Transportation Planning Package (CTPP). - Where TAZs were split, significant boundary alignment differences exist between the 1990 and 2000 TAZ datasets. - Generally, the 2000 TAZ system utilized 1998 TIGER line files for boundaries, which do not necessarily match the line files typically used with other Council generated GIS datasets. Because of this, some boundary lines take on a different appearance in instances where the more positionally accurate line doesn't follow acceptable TIGER boundary features.
Browse Graphic	View a sample of the data.
Time Period of Content Date	2008
Currentness Reference	Dataset is current as of January 20, 2012
Access Constraints	None
Use Constraints	None
Distributor Organization	Metropolitan Council
Ordering Instructions	This dataset is distributed on the internet by clicking below after 'Online Linkage'. Doing so will tell your browser to download a 'ZIP' file which will contain the following: - ArcView shape files - metadata for the dataset (.htm and .xml) - NOTICE.RTF, an important notice about this dataset that can be read by any word processing software. Additionally, this dataset is available for direct use via one or more map services. More information about what a web mapping service is can be found at http://www.datafinder.org/services/ The specific map service and layer name for this dataset can be found by clicking the blue or green boxes under the map service column of the DataFinder Catalog at http://www.datafinder.org/catalog/ .
Distribution Liability	NOTICE: The Geographic Information System (GIS) Data to which this notice is attached are made available pursuant to the Minnesota Government Data Practices Act (Minnesota Statutes Chapter 13). THE GIS DATA ARE PROVIDED TO YOU AS IS AND WITHOUT ANY WARRANTY AS TO THEIR PERFORMANCE, MERCHANTABILITY, OR FITNESS FOR ANY PARTICULAR PURPOSE. The GIS Data were developed by the Metropolitan Council for its own internal business purposes. The Metropolitan Council does not represent or warrant that the GIS Data or the data documentation are error-free, complete, current, or accurate. You are responsible for any consequences resulting from your use of the GIS Data or your reliance on the GIS Data. You should consult the data documentation for this particular GIS Data to determine the limitations of the GIS Data and the precision with which the GIS Data may depict distance, direction, location, or other geographic features. If you transmit or provide the GIS Data (or any portion of it) to another user, it is recommended that the GIS Data include a copy of this disclaimer and this metadata.
Online Linkage	I AGREE to the notice in "Distribution Liability" above. Clicking to agree will begin the download process (See Ordering Instructions above for details.)

Full Metadata

Transportation Analysis Zones 2000

Go to Section:
1. Identification Information
2. Data Quality Information
3. Spatial Data Organization Information
4. Spatial Reference Information
5. Entity and Attribute Information
6. Distribution Information
7. Metadata Reference Information


Section 1	Identification Information		Top of page
Originator	Metropolitan Council
Title	Transportation Analysis Zones 2000
Abstract	Transportation analysis zones are subdivisions of geographical areas that are delineated for land use and travel analysis purposes. This system is a modification of that developed jointly by the Minnesota Department of Transportation and the Metropolitan Council in late 1989, referred to as Transportation Analysis Zones, 1990 or TAZ1990. The principal difference between the 1990 and 2000 systems is that 27 TAZs were subdivided into smaller units, thus expanding the total number of TAZs from 1165 to 1201. Notes: - The geography for this file is based on the Twin Cities Regional Travel Demand Forecast Model. Attributes included are population, households, total employment, retail employment, and non-retail employment for the years 2000, 2010, 2020 and 2030. - As of early 2004, this set of TAZs became the official TAZ system for travel demand modeling, socioeconomic forecasts and community comprehensive plan development, in addition to its existing use for the 2000 Census Transportation Planning Package (CTPP). - Where TAZs were split, significant boundary alignment differences exist between the 1990 and 2000 TAZ datasets. - Generally, the 2000 TAZ system utilized 1998 TIGER line files for boundaries, which do not necessarily match the line files typically used with other Council generated GIS datasets. Because of this, some boundary lines take on a different appearance in instances where the more positionally accurate line doesn't follow acceptable TIGER boundary features.
Purpose	The transportation analysis zones layer was developed as a means to compile, analyze and exhibit demographic data and data related to capacity to produce travel. The primary analysis is the magnitude of tripmaking created within each TAZ and the interaction of these trips between the various zones within the region.
Time Period of Content Date	2008
Currentness Reference	Dataset is current as of January 20, 2012
Progress	Complete
Maintenance and Update Frequency	None Planned
Spatial Extent of Data	Twin Cities 7 County Metropolitan Area. This includes the counties of Anoka, Carver, Dakota, Hennepin, Ramsey, Scott and Washington in Minnesota.
Bounding Coordinates	-94.012 -92.732 45.415 44.471
Place Keywords	Twin Cities, Anoka County, Carver County, Dakota County, Hennepin County, Ramsey County, Scott County, Washington County
Theme Keywords	Transportation Analysis Zones, Traffic Assignment Zones, Traffic Analysis Zones, employment, jobs, population, households, transportation, demographics
Theme Keyword Thesaurus	None
Access Constraints	None
Use Constraints	None
Contact Person Information	Bob Paddock, Transportation Research Planner Metropolitan Council 390 Robert Street North St. Paul, Minnesota 55101-1805 Phone: 651-602-1340 FAX: 651-602-1739 E-mail: bob.paddock@metc.state.mn.us
Browse Graphic	View a sample of the data.
Browse Graphic File Description	Sample map showing the TAZ2000 layer.
Associated Data Sets	Transportation Analysis Zones for External Counties ( http://www.datafinder.org/metadata/TAZExternalCounties.htm ) Transportation Analysis Zones for the Year 1990-2000 ( http://www.datafinder.org/metadata/TAZ1990_2000.htm ) This dataset has the 1990 TAZ geography with attributes for both 1990 and 2000.

Section 2	Data Quality Information	Top of full metadata	Top of page
Attribute Accuracy	No tests have been made related to attribute accuracy.
Logical Consistency	The dataset is topologically 'clean'.
Completeness	Entire seven county geographic area is covered.
Horizontal Positional Accuracy	The positional accuracy of the dataset has not been tested under the National Standards for Spatial Data Accuracy. The positional accuracy of the dataset is UNKNOWN. Boundary lines are generally based on 2000 Census block boundaries. TAZ boundaries that are coincident with county and municipal boundaries do not match the more accurate county and municipal boundary layer used by the Metropolitan Council.
Lineage	TAZ GEOGRAPHY: Generally came from Tiger data received in 1999. Metropolitan Council projected to UTM, NAD83 Meters and combined counties. Then TAZ IDs and attributes were added by Metropolitan Council staff. POPULATION AND EMPLOYMENT VALUES: The year-2000 population and household data for each TAZ is aggregated from block level census data. In most cases, census blocks fit neatly into each TAZ. In the few cases where they did not, a determination was made as to the appropriate TAZ in which to include the block, based on the general location of population within the block. Employment data for the year-2000 was received from the Minnesota Department of Economic Security MNDES. MNDES provided the Metropolitan Council a file of employer address that the Metropolitan Council address matched and aggregated to each TAZ. In a few cases, the employment numbers for a TAZ did not meet the discloser thresholds required by MNDES. In such cases, the numbers were adjusted with a neighboring TAZ to prevent disclosure. This was more common with retail employment numbers than with total employment. The 2010 through 2030 population and employment data are based on city forecasts as of January 9, 2008. Their distributions result from community Comprehensive Plan updates.
Source Scale Denominator

Section 3	Spatial Data Organization Information	Top of full metadata	Top of page
Native Data Set Environment	ArcGIS 9x
Geographic Reference for Tabular Data	TAZ ID number
Spatial Object Type	Vector
Vendor Specific Object Types	polygon shapes
Tiling Scheme	One layer for entire seven county region.

Section 4	Spatial Reference Information	Top of full metadata	Top of page
Horizontal Coordinate Scheme	Universal Transverse Mercator
Ellipsoid	GRS80
Horizontal Datum	NAD83
Horizontal Units	meters
Distance Resolution
UTM Zone Number	15

Section 5	Entity and Attribute Information	Top of full metadata	Top of page

Entity and Attribute Overview

POLYGON ATTRIBUTES:  
   
TAZ_2000:   The ID developed for each 2000 TAZ. 
 
POP2000:    Population within the TAZ  (Source: 2000 Census) 
 
HH2000:     Households within the TAZ  (Source: 2000 Census) 
 
EMP2000:    Employment (jobs) within the TAZ  (Source: MN Dept. of  
            Economic Security) 
 
RET2000:    Retail employment within the TAZ  (Source: MN Dept. of  
            Economic Security) 
 
NONR2000:   Non-retail employment within the TAZ (TOTAL_EMPL -  
            RETAIL_EMP) 
 
POP2010:    Estimated population within TAZ in 2010 (based on city forecasts) 
 
POP2020:    Estimated population within TAZ in 2020 (based on city forecasts) 
 
POP2030:    Estimated population within TAZ in 2030 (based on city forecasts) 
 
HH2010:     Estimated number of households within TAZ in 2010 (based on city 
            forecasts) 
 
HH2020:     Estimated number of households within TAZ in 2020 (based on city 
            forecasts) 
 
HH2030:     Estimated number of households within TAZ in 2030 (based on city 
            forecasts) 
 
EMP2010:    Estimated total employment (jobs) within TAZ in 2010 (based on city  
            forecasts) 
 
EMP2020:    Estimated total employment (Jobs) within TAZ in 2020 (based on city  
            forecasts) 
 
EMP2030:    Estimated total employment (jobs) within TAZ in 2030 (based on city  
            forecasts) 
 
RET2010:    Estimated retail employment (jobs) within TAZ in 2010 (based on  
            2000 distribution and city comp plans) 
 
RET2020:    Estimated retail employment (jobs) within TAZ in 2020 (based on  
            2000 distribution and city comp plans) 
 
RET2030:    Estimated retail employment (jobs) within TAZ in 2030 (based on  
            2000 distribution and city comp plans) 
 
NONR2010:  Estimated non-retail employment (jobs) within TAZ in 2010 (based on 
           2000 distribution and city comp plans) 
 
NONR2020:  Estimated non-retail employment (jobs) within TAZ in 2020 (based on  
           2000 distribution and city comp plans) 
 
NONR2030:  Estimated non-retail employment (jobs) within TAZ in 2020 (based on  
           2000 distribution and city comp plans)

Entity and Attribute Detailed Citation	None

Section 6	Distribution Information	Top of full metadata	Top of page
Publisher	Metropolitan Council
Publication Date	05/04/2012
Contact Person Information	Mark Kotz GIS Database Administrator Metropolitan Council 390 North Robert Street St. Paul, Minnesota 55101-1805 Phone: 651-602-1644 FAX: 651-602-1674 E-mail: mark.kotz@metc.state.mn.us
Distributor's Data Set Identifier	TAZ2000
Transfer Format Name	Shape File
Transfer Format Version Number	ArcGIS 9x
Transfer Size	1 meg. for self extracting ZIP file.
Ordering Instructions	This dataset is distributed on the internet by clicking below after 'Online Linkage'. Doing so will tell your browser to download a 'ZIP' file which will contain the following: - ArcView shape files - metadata for the dataset (.htm and .xml) - NOTICE.RTF, an important notice about this dataset that can be read by any word processing software. Additionally, this dataset is available for direct use via one or more map services. More information about what a web mapping service is can be found at http://www.datafinder.org/services/ The specific map service and layer name for this dataset can be found by clicking the blue or green boxes under the map service column of the DataFinder Catalog at http://www.datafinder.org/catalog/ .
Distribution Liability	NOTICE: The Geographic Information System (GIS) Data to which this notice is attached are made available pursuant to the Minnesota Government Data Practices Act (Minnesota Statutes Chapter 13). THE GIS DATA ARE PROVIDED TO YOU AS IS AND WITHOUT ANY WARRANTY AS TO THEIR PERFORMANCE, MERCHANTABILITY, OR FITNESS FOR ANY PARTICULAR PURPOSE. The GIS Data were developed by the Metropolitan Council for its own internal business purposes. The Metropolitan Council does not represent or warrant that the GIS Data or the data documentation are error-free, complete, current, or accurate. You are responsible for any consequences resulting from your use of the GIS Data or your reliance on the GIS Data. You should consult the data documentation for this particular GIS Data to determine the limitations of the GIS Data and the precision with which the GIS Data may depict distance, direction, location, or other geographic features. If you transmit or provide the GIS Data (or any portion of it) to another user, it is recommended that the GIS Data include a copy of this disclaimer and this metadata.
Online Linkage	I AGREE to the notice in "Distribution Liability" above. Clicking to agree will begin the download process (See Ordering Instructions above for details.)

Section 7	Metadata Reference Information	Top of full metadata	Top of page
Metadata Date	05/04/2012
Contact Person Information	David Vessel, Transportation Planner Metropolitan Council 390 North Robert Street St. Paul, Minnesota 55101-1805 Phone: 651-602-1646 FAX: 651-602-1739 E-mail: david.vessel@metc.state.mn.us
Metadata Standard Name	Minnesota Geographic Metadata Guidelines
Metadata Standard Version	1.2
Metadata Standard Online Linkage	http://www.gis.state.mn.us/stds/metadata.htm

This page last updated: 05/04/2012