Name: Enumeration Areas (Census 2011)

Display Field: SP_NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The creation of EAs had to adhere to certain standards, including the following:EAs should cover all areas of the country, i.e. no gaps between EAs. EAs should be accessible and of such a size that field workers can carry out their tasks within the stipulated period of census taking. EAs should be as homogeneous in land use as possible. Dissemination objectives also require taking into account the demand for small area data, the confidentiality of personal information and the ability to be aggregated to present information on larger geographic units (UN Handbook, 2006). The enumeration areas (EAs), form the lowest level of geographic units (above the geo-referenced dwelling frame) in the census geographical frame. According to the hierarchical principle, the EAs should fit perfectly to the boundaries as outlined in the hierarchy, to allow aggregation of data per geographic level. The determination of size is influenced mainly by the EAs’ geographical location and population density. In sparsely populated areas, the EAs tend to be large in terms of area but have a low dwelling unit (DU) count of approximately 100, whereas the densely populated areas tend to have small area sizes with a dwelling (DU) count of approximately 151. The EAs can be linked to various census variables according to users’ needs, which make it a powerful layer for manipulating and analysing socio-economic and demographic data within a spatial context. The EA demarcation process was mostly a manual process due to errors caused by missing data and non-standardisation of national base data sets that were used as input or reference data, which made the design and development of automated processes very difficult. Publication Date: 1 July 2011

Service Item Id: dca72642ab8a449999609dc9acf7dc78

Copyright Text: Statistics South Africa

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 190852.17640000023
YMin: 6144889.3308
XMax: 804591.4501999998
YMax: 6631029.4619
Spatial Reference: 32734  (32734)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [255, 0, 0, 0]
Outline:
Style: esriSLSDash
Color: [230, 0, 0, 255]
Width: 1
Label: N/A
Description: N/A
Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: true
Supports Sql Format: false
Supports Query Analytic: false
Supports Query With Current User: true

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• Shape ( type: esriFieldTypeGeometry, alias: Shape )
• EA_CODE ( type: esriFieldTypeDouble, alias: EA_CODE )
• SP_CODE ( type: esriFieldTypeDouble, alias: SP_CODE )
• SP_NAME ( type: esriFieldTypeString, alias: SP_NAME, length: 254 )
• MP_CODE ( type: esriFieldTypeDouble, alias: MP_CODE )
• MP_NAME ( type: esriFieldTypeString, alias: MP_NAME, length: 254 )
• MN_MDB_C ( type: esriFieldTypeString, alias: MN_MDB_C, length: 7 )
• MN_CODE ( type: esriFieldTypeDouble, alias: MN_CODE )
• MN_NAME ( type: esriFieldTypeString, alias: MN_NAME, length: 254 )
• MN_TYPE ( type: esriFieldTypeString, alias: MN_TYPE, length: 15 )
• DC_MDB_C ( type: esriFieldTypeString, alias: DC_MDB_C, length: 5 )
• DC_MN_C ( type: esriFieldTypeDouble, alias: DC_MN_C )
• DC_NAME ( type: esriFieldTypeString, alias: DC_NAME, length: 254 )
• PR_MDB_C ( type: esriFieldTypeString, alias: PR_MDB_C, length: 3 )
• PR_CODE ( type: esriFieldTypeDouble, alias: PR_CODE )
• PR_NAME ( type: esriFieldTypeString, alias: PR_NAME, length: 50 )
• EA_GTYPE_C ( type: esriFieldTypeInteger, alias: EA_GTYPE_C )
• EA_GTYPE ( type: esriFieldTypeString, alias: EA_GTYPE, length: 15 )
• EA_TYPE_C ( type: esriFieldTypeInteger, alias: EA_TYPE_C )
• EA_TYPE ( type: esriFieldTypeString, alias: EA_TYPE, length: 50 )
• ALBERS_ARE ( type: esriFieldTypeDouble, alias: ALBERS_ARE )
• SAL_CODE ( type: esriFieldTypeDouble, alias: SAL_CODE )
• AreaKm2 ( type: esriFieldTypeDouble, alias: AreaKm2 )
• Shape_Length ( type: esriFieldTypeDouble, alias: Shape_Length )
• Shape_Area ( type: esriFieldTypeDouble, alias: Shape_Area )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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