Commercial Data
Metadata
Metadata
is the data about the data.
It is very important to know and includes information such as where
the data comes from, when it was created, how it was created, and why
it was created.
PROPERTY
Coverage
Description: Cleaned and edge matched polygon property
areas for the Metro property maps. Coverage
Name: PROPERTY
Coverage
Type: Net (arcs and polygons)
Primary
Map Source(s): Synercom Informap II database, original
mylar property maps.
Secondary
Map Source: New surveys, plats and deeds. Constantly
updated.
Existing
Tabular Database: Metro Land Information System
Ownership/Maintenance: Metropolitan
Planning Commission
User
Attribute Tables: PROPERTY.PAT, BUILDINGS.AAT, PROPERTY.TAT
ARC
Topology: Yes
Measurement
Units: U.S. Survey Feet
Precision: Double
BUILDING FOOTPRINTS
Coverage
Description: Building
data is photogrammetrically compiled (digitized) directly
from the 1" = 1,320' aerial photography and the original
1987 planimetric data. Names of only principal or noteworthy
buildings will be annotated.
Coverage
Name: BUILDINGS
Coverage
Type: Net (arcs and polygons)
Primary
Map Source(s): November 1996 Aerial Photography, Merrick's
Photogrammetric Mapping, 1987 Photogrammetric Mapping
Secondary
Map Source: None
Existing
Tabular Database: None
Ownership/Maintenance: Metropolitan
Planning Commission
User
Attribute Tables: BUILDINGS.AAT,
BUILDINGS.PAT, BUILDINGS.TAT
ARC
Topology: Yes
Measurement
Units: U.S.
Survey Feet
Precision: Double
HYDROGRAPHY
(STREAMS AND WATER BODIES)
Coverage
Description: Hydrographic data is compiled (digitized)
directly from the 1"=1,320' scale aerial photography
and original 1987 planimetric data. This will be a
Network coverage which combines both polygon and line
data.
Coverage Name: STREAMS
Coverage Type: Net (arcs and Polygons)
Primary Map Source(s): March 1996 Aerial Photography,
Merrick's Photogrammetric Mapping, 1987 Photogrammetric
Mapping
Secondary Map Source: None.
Existing
Tabular Database: None Ownership/Maintenance:
Metropolitan Planning Commission
User
Attribute Table: STREAMS.AAT, STREAMS.PAT, STREAMS.TAT
ARC
Topology: Yes
Measurement Units: US Survey Feet
Precision: Double
VEGETATION
Coverage
Description: Vegetation areas greater than 1/4 acre
are compiled from the aerial photography. Coverage
Name: VEGETATION
Coverage
Type: Net (arcs and Polygons)
Primary
Map Source(s): March 1996 Aerial Photography, Merrick's
Photogrammetric Mapping, 1987 Photogrammetric Mapping
Secondary
Map Source(s): None
Existing
Tabular Database: None
User
Attribute Table: VEGETATION.AAT, VEGETATION.PAT Measurement
Units: US Survey Feet
Precision: Double
RAILROAD
Coverage
Description: Railroad data is compiled (stereo-digitized)
directly from the 1"=1,320' aerial photography and
the original 1987 planimetric data. This coverage incorporates
line attributes.
Coverage
Name: RAILROAD
Coverage
Type: Line
Primary
Map Source(s): March 1996 Aerial Photography, Merrick's
Photogrammetric Mapping, 1987 Photogrammetric Mapping
Secondary
Map Source: None
Existing
Tabular Database: None
Ownership/Maintenance: Metropolitan
Planning Commission
User
Attribute Table: RAILROAD.AAT, RAILROAD.TAT
ARC
Topology: Yes
Measurement
Units: US Survey Feet
Precision: Double
PAVEMENT
Coverage
Description: The transportation data is compiled (stereo-digitized)
directly from the 1996 aerial photography and the original
1987 planimetric data. This coverage incorporates line
and attributes. Coverage
Name: TRANSPRT
Coverage
Type: Net (arcs and polygons)
Primary
Map Source(s): March 1996 Aerial Photography, Merrick's
Photogrammetric Mapping, 1987 Photogrammetric mapping
Secondary
Map Source: None
Existing
Tabular Database: None
Ownership/Maintenance: Metropolitan
Planning Commission
User
Attribute Table: TRANSPRT.AAT,
TRANSPRT.PAT
ARC
Topology: Yes
Measurement
Units: US Survey Feet
Precision: Double
AIRPORT
Coverage
Description: Airport planimetric line data is compiled
(stereo-digitized) directly from the 1" = 1,320' aerial
photography. This coverage combines line features such
as taxi strips, runways and aircraft parking areas.
Coverage
Name: AIRPORT
Coverage
Type: Line
Primary
Map Source(s): March 1996 Aerial Photography, Merrick's
Digital Mapping, 1987 Photogrammetric Mapping
Secondary
Map Source: None
Existing
Tabular Database: None
Ownership/Maintenance: Metropolitan
Planning Commission
User
Attribute Table: AIRPORT.AAT
ARC
Topology: Yes
Measurement
Units: US Survey Feet
Precision: Double
PARKING
Coverage
Description: Parking lot larger than 40' x 40' is compiled
(digitized) directly from the aerial photography. This
will be a line coverage which combines both polygons and
line data.
Coverage
Name: PARKING
Coverage
Type: Net (arcs and polygons)
Primary
Map Source(s): March 1996 Aerial Photography, Merrick's
Photogrammetric Mapping, 1987 Photogrammetric Mapping
Secondary
Map Source: None
Existing
Tabular Database: None
Ownership/Maintenance: Metropolitan
Planning Commission
User
Attribute Table: PARKING.AAT,
PARKING.PAT
ARC
Topology: Yes
Measurement
Units: US Survey Feet
Precision: Double
TVA (LINES AND TOWERS)
Coverage
Description: This coverage incorporates graphic and
attribute features of TVA Transmission Lines & Towers
Coverage
Name: TVA
Coverage
Type: Link (arc and point)
Primary
Map Source(s): March 1996 Aerial Photography, Merrick's
Photogrammetric Mapping, 1987 Photogrammetric Mapping
Secondary
Map Source(s): None
Existing
Tabular Database: None
User
Attribute Table: TVA.AAT, TVA.XAT
Measurement
Units: US Survey Feet
Precision: Double
FENCES AND WALLS
Coverage
Description: This coverage has all the fences and retaining
walls.
Coverage
Name: MISC
Coverage
Type: Line
Primary
Map Source(s): March 1996 Aerial Photography, Merrick's
Photogrammetric Mapping, 1987 Photogrammetric Mapping
Secondary
Map Source: None
Existing
Tabular Database: None
Ownership/Maintenance: Metropolitan
Planning Commission
User
Attribute Table: MISC.AAT
ARC
Topology: Yes
Measurement
Units: US Survey Feet
Precision: Double
TOPOGRAPHY
Coverage
Description: Coverage contains contours generated by
Metro in 1987 and updates by Merrick to verify accuracy
of DEM.
Coverage
Name: TOPO
Coverage
Type: Line
Primary
Map Source(s): March 1996 Aerial Photography, Merrick's
Photogrammetric Mapping, 1987 Photogrammetric Mapping
Secondary
Map Source: 1987
Photogrammetric Mapping
Existing
Tabular Database: None
Ownership/Maintenance: Metropolitan
Planning Commission
User
Attribute Table: TOPO.AAT
ARC
Topology: Potentially
Measurement
Units: US Survey Feet
Precision: Double