Name: Philadelphia Geographic Market Areas 2016
Display Field: GMA
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: Description:GMA’s (Geographic Market Area’s) define the geographic areas within which home sales will be compared during the reassessment analysis. GMA’s are determined primarily by differences in sale prices, housing stock and/or geographical factors. As GMA’s are created based on the specific market conditions and the assessment year, GMA’s should be analyzed and updated at regular intervals based on the fluctuating market conditions and before creating reassessment models.GMA’s have been sporadically redefined by a subjective process by the OPA staff. Status: Features updated: 03/07/2013Attributes updated: 03/07/2013Metadata updated: 03/27/2013Update Frequency: Yearly, as neededAbstract:This dataset displays a polygon shape file that illustrates all of the 651 GMA’s. The purpose is to locate properties for classification and comparison purposes in the City of Philadelphia. Data Description:This file is created based on property characteristics data collected by OPA Evaluators and is referenced to the DOR parcel layer and Street Centerline layer.Key attributes, field names and descriptions:FID: FID stands for 'Feature ID' which is a unique field representing each feature in the shapefile.SHAPE: This field indicates the type of geometry—polygon.GMA: GMA stands for ‘Geographic Market Area’ code which is a 4 digit ID used to identify various neighborhoods.Feature geometry.Coordinate systemProjection: Lambert Conformal Conic XY Coordinate System: NAD 1983 State Plane Pennsylvania South FIPS 3702 (US Feet)Datum: NAD 1983Units of Measurement: Foot_US
Copyright Text: Credits : OPA IT/GIS Unit
Contact_Organization: Office of Property Assessment
Contact_Address: The Curtis Center
601 Walnut Street, Suite 300 North
Philadelphia PA, 19106
Phone: 215-686-4334 Fax: 215-686-9223
Default Visibility: false
MaxRecordCount: 1000
Supported Query Formats: JSON, geoJSON, PBF
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Extent:
XMin: -75.2844564628782
YMin: 39.86085817471448
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YMax: 40.14386745435833
Spatial Reference: GEOGCS["NAD83_GEO",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["",0.0],UNIT["Degree",0.0174532925199433]]
Drawing Info:
Renderer:
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HasZ: false
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HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText
Type ID Field: null
Fields:
-
OBJECTID
(
type: esriFieldTypeOID, alias: OBJECTID
)
-
Shape
(
type: esriFieldTypeGeometry, alias: Shape
)
-
GMA
(
type: esriFieldTypeString, alias: GMA, length: 4
)
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Shape_Length
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type: esriFieldTypeDouble, alias: Shape_Length
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Shape_Area
(
type: esriFieldTypeDouble, alias: Shape_Area
)
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