Name: Traffic Analysis Zone (COG)

Display Field: TRAFFIC_ANALYSIS_ZONE

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Council of Governments Traffic Analysis Zones - COGTAZ is a stand-alone geography. COGTAZ is a geographic designation used by the Council of Governments to collect and analyze statistical information for input to COG's travel demand forecasting model. This geography is maintained by the Research Section and corresponds to the geography for which dwelling unit, household, population, and employment estimates are maintained and forecasts developed. There are currently a total of 2,191 COG-TAZs in the entire COG modeled region, and 380 of the zones are in Prince George's County. Each zone in the county is uniquely identified by a number ranging from 640 to 1020. (Since the unification of Takoma Park, there is no TAZ 648 in Prince George's County.) Coverage Derivation: The original coverage from the COG came with unspecified scale which has been adjusted to 1:2,400 scale. The following coverages (layers) were used to adjust the COGTAZ boundaries: PAZ, CAZ, PA, Streams, Muni., PGTAZ, Cline, Property, 2000 Aerial, Roadsall and Zoning. In addition, the Research Section also sought input from the Community and Countywide Planning Divisions to achieve further refinements to the geography and data. The boundaries and attribute data were checked by the Research Section staff for quality control. This data is current to Round 9 of the Council of Governments projections.

Copyright Text: Source information provided by Council of Governments.

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Supported Query Formats: JSON, geoJSON

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Extent:

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YMin: 316967.314808875
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Spatial Reference: 103069  (6488)

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Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• TRAFFIC_ANALYSIS_ZONE ( type: esriFieldTypeInteger, alias: TAZ Number )
• POPULATION_2020 ( type: esriFieldTypeDouble, alias: Population 2020 )
• POPULATION_2025 ( type: esriFieldTypeDouble, alias: Population 2025 )
• POPULATION_2030 ( type: esriFieldTypeDouble, alias: Population 2030 )
• POPULATION_2035 ( type: esriFieldTypeDouble, alias: Population 2035 )
• POPULATION_2040 ( type: esriFieldTypeDouble, alias: Population 2040 )
• POPULATION_2045 ( type: esriFieldTypeDouble, alias: Population 2045 )
• HOUSEHOLDS_2020 ( type: esriFieldTypeDouble, alias: Households 2020 )
• HOUSEHOLDS_2025 ( type: esriFieldTypeDouble, alias: Households 2025 )
• HOUSEHOLDS_2030 ( type: esriFieldTypeDouble, alias: Households 2030 )
• HOUSEHOLDS_2035 ( type: esriFieldTypeDouble, alias: Households 2035 )
• HOUSEHOLDS_2040 ( type: esriFieldTypeDouble, alias: Households 2040 )
• HOUSEHOLDS_2045 ( type: esriFieldTypeDouble, alias: Households 2045 )
• EMPLOYMENT_2020 ( type: esriFieldTypeDouble, alias: Employment 2020 )
• EMPLOYMENT_2025 ( type: esriFieldTypeDouble, alias: Employment 2025 )
• EMPLOYMENT_2030 ( type: esriFieldTypeDouble, alias: Employment 2030 )
• EMPLOYMENT_2035 ( type: esriFieldTypeDouble, alias: Employment 2035 )
• EMPLOYMENT_2040 ( type: esriFieldTypeDouble, alias: Employment 2040 )
• EMPLOYMENT_2045 ( type: esriFieldTypeDouble, alias: Employment 2045 )
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• POPULATION_2050 ( type: esriFieldTypeDouble, alias: POPULATION_2050 )
• HOUSEHOLDS_2050 ( type: esriFieldTypeDouble, alias: HOUSEHOLDS_2050 )
• EMPLOYMENT_2050 ( type: esriFieldTypeDouble, alias: EMPLOYMENT_2050 )

Supported Operations:   Query   Query Attachments   Generate Renderer   Return Updates

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