Profiling
Codebook
- See codebook here.
Overall Data Description:
The data came in .gdb format. Made shapefile of those data that were needed using the codebook as a guide. Though some tables that contained 2015 data were included, profiling was done following the primary purpose of this data: to geocode property/parcels/address.
GIS Layers
| Quality: Address points | ||||
|---|---|---|---|---|
| Description | Provides a point indicating location of every street number address (excludes suites/apts/condos or other units) in Arlington County, VA | |||
| Feature Type | Point | |||
| Last Major Update | June 01, 2012 | |||
Spatial Reference | NAD_1983_StatePlane_Virginia_North_FIPS_4501_Feet | |||
| State Source | Permits Plus (CPHD), others | |||
| Elements | 43,047 | |||
| Variable | Completeness | Validity | Uniqueness | Consistency |
"STNUM" | 100% | 100% | 100% | |
"STCODE" | 100% | 100% | 893 levels | 100% |
"STRTDIR" | 100% | Levels: "N" "S" | 100% | |
STRTDIRPRE" | 100% | Levels: "N" "S" | 100% | |
"STRTNAME" | 100% | 100% | 100% | |
"STRTTYPE" | 1 missing | 100% | Levels: "ARC" "AVE" "BLVD" "CIR" "CT" "DR" "HWY" "LN" "PIKE" "PKWY" "PL" "RD" "ST" "TER" | 100% |
"STRTDIRSUF" | 100% | Levels: "N" "S" | 100% | |
"UNIT" | 100% | Levels: "1" "2" "3" "4" "5" "A" "B" "C" "D" "E" "F" "G" "H" "I" "J" "K" "L" | 100% | |
"UPDATE_DAT" | 100% | 100% | 100% | |
"ZIP5" | 100% | Non-Arlington Zips: 20001, 22046 | 100% | |
| Quality: Building (Polygon) | ||||
|---|---|---|---|---|
| Description | Building Footprints; 43,388 elements | |||
| Feature Type | Polygon | |||
| Last Major Update | May 24, 2010 | |||
Spatial Reference | NAD_1983_StatePlane_Virginia_North_FIPS_4501_Feet | |||
| Stated Source | 2009 orthophotography | |||
Maintenance Frequency | Planimetric Updates | |||
| Elements | 43,388 | |||
| Variable | Completeness | Validity | Uniqueness | Consistency |
"GIS_ID" | 100% | 100% | 100% | 100% |
** Null objects with the following indices deleted: 40376 (GIS ID 37035 from BuildingPoly) **
| Quality: 2000 Census (Blocks, Block Groups, Tracts) | ||||
|---|---|---|---|---|
| Description | 2000 Census Borders | |||
| Feature Type | Polygon | |||
| Last Major Update | October 04, 2006 | |||
Spatial Reference | NAD_1983_StatePlane_Virginia_North_FIPS_4501_Feet | |||
| Stated Source | Arlington County Real Estate Assessments Real Property Identification Map and TIGER plots. | |||
Maintenance Frequency | Every 10 Years | |||
| Elements | 1,863 Blocks, 142 Block Groups, 39 Tracts | |||
| Quality: 2010 Census (Blocks, Block Groups, Tracts) | ||||
|---|---|---|---|---|
| Description | 2010 Census Borders | |||
| Feature Type | Polygon | |||
| Last Major Update | June 04, 2012 | |||
Spatial Reference | NAD_1983_StatePlane_Virginia_North_FIPS_4501_Feet | |||
| Stated Source | Arlington County Real Estate Assessments Real Property Identification Map and TIGER plots. | |||
Maintenance Frequency | Every 10 Years | |||
| Elements | 43,388 Blocks, 181 Block Groups, 39 Tracts | |||
| Quality: County | ||||
|---|---|---|---|---|
| Description | Polygon depicting the boundary of Arlington County | |||
| Feature Type | Polygon | |||
| Last Major Update | January 01, 1900 | |||
Spatial Reference | NAD_1983_StatePlane_Virginia_North_FIPS_4501_Feet | |||
| Stated Source | -- | |||
Maintenance Frequency | As needed | |||
| Quality: REA Property | ||||
|---|---|---|---|---|
| Description | Polygons representing real property boundaries. The CAMA data tables may be linked to the property feature class using the item RPCMSTR. "Stacked" properties such as condominiums are mapped as a single polygon, using an RPCMaster as a link to CAMA records (one to many) | |||
| Feature Type | Polygone | |||
| Last Major Update | May 11, 2010 | |||
Spatial Reference | NAD_1983_StatePlane_Virginia_North_FIPS_4501_Feet | |||
| Stated Source | DPW's Real Estate Assessment layers; updates from recorded plats. | |||
Maintenance Frequency | Weekly | |||
| Elements | 38,412 | |||
| Variable | Completeness | Validity | Uniqueness | Consistency |
| "RPCMSTR" | 100% | 17 have "XXXX" before two numbers (invalid according to online search) | 100% | 100% |
| Quality: Street Network | ||||
|---|---|---|---|---|
| Description | This feature class represents the street network. All street segments have a high and low, left and right, address range. This is NOT survey/design centerlines. Direction digitized follows increasing addresses. | |||
| Feature Type | Polyline | |||
| Last Major Update | May 25, 2010 | |||
Spatial Reference | NAD_1983_StatePlane_Virginia_North_FIPS_4501_Feet | |||
| Stated Source | Ortho Photography | |||
Maintenance Frequency | As needed | |||
| Variable | Completeness | Validity | Uniqueness | Consistency |
STCODE | 100% | 100% | 893 levels | 100% |
STRTNAME | 100% | 100% | 100% | |
STRTTYPE | 9% missing | 100% | Levels: "AVE" "BLVD" "BRG" "CIR" "CT" "DR" "HWY" "LN" "PIKE" "PKWY" "PL" "RD" "ST" "TER" | 100% |
STRTDIRS | 100% | Levels: "N" "S" | 100% | |
