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Fairfax County GISFairfax County GIS
Presented to the Sully District Council of Civic Association
What Is A GIS?What Is A GIS?
A computer-based tool for mapping and analyzing spatial information
Integrates common database operations such as query and statistical analysis with maps
rlington Blvd
Street
How GIS worksHow GIS works
Links records in a database to features on the map
Features are represented as Points, Lines, & Polygons
Paper to Digital MapsPaper to Digital Maps
County maps were converted to digital layers
Attribute database are attached to the features
County GIS User AgenciesCounty GIS User Agencies Tax Administration Public Works Management &
Budget Park Authority Environmental
Management Juvenile Courts Libraries
Planning and Zoning Mapping Services Transportation Public Schools Health Human Services Police Fire and Rescue
Current Geographic DataCurrent Geographic Data Raster Parcel &
Zoning Orthophotography Airports Census Boundaries Election Boundaries Fire & Rescue
Boundaries Hydrography Industrial Park
Zoning Boundaries Park Areas Radon Gas
Police Patrol Boundaries
Political Jurisdictions
Public Facilities Locations
Railroads Refuse Collection
Areas School
Boundaries School Locations Planning Districts
1”=200’ Soils Solid Waste
Facilities Street
Centerline Network
Streets Supervisor
Districts Tax Map Grid Utility Lines Watershed
Areas Zip Code Areas
Soils and Parcel Map ImagesSoils and Parcel Map Images
GREAT FALLS
RESTON
VIENNA
FAIRFAX
CLIFTON
LORTON
ANNANDALE
ALEXANDRIA
FORT BELVOIR
CENTREVILLE
HERNDON
McLEAN
FALLS CHURCH
SPRINGFIELD
Parks
0 7 Miles
N
EW
S
Where: OWNER = "BOS"
Shape Area Perimeter Parks# Parks-id Name Parkcode Owner
Polygon 6635.15154 329.95784 10 128 BOS
Polygon 135172.49470 3701.93189 14 120 BOS
Polygon 39242.29679 1290.93457 22 119 BOS
Polygon 74514.32268 2102.39752 25 118 BOS
Polygon 397094.31713 2787.89161 27 1179 BOS
Polygon 85736.71291 1306.26132 30 490 BOS
Polygon 4706974.63400 11353.65463 31 755 BOS
Polygon 9921.66110 398.50043 52 493 BOS
Polygon 208664.17003 3810.75766 67 1371 BOS
Polygon 10262.24735 405.25620 71 1070 BOS
Polygon 5990.86836 797.05638 83 1189 BOS
Polygon 11429.90423 427.95714 86 764 BOS
Polygon 52372.38532 1022.16799 87 1065 BOS
Polygon 1450465.39138 5946.36609 96 697 BOS
Polygon 17312.83129 638.63846 97 1069 BOS
Polygon 102880.73614 1608.81369 100 699 BOS
Polygon 235785.02300 2120.88886 111 700 BOS
Polygon 392524.56886 2623.99471 119 747 BOS
Polygon 18713.50918 2001.64724 122 753 BOS
Polygon 20137.20104 591.96273 125 1170 BOS
Polygon 41113.04034 849.96990 126 1140 BOS
Polygon 30293.66247 713.30244 132 1076 BOS
Polygon 28117.48676 1058.58315 133 1075 BOS
Polygon 43344.97997 834.58696 134 750 BOS
Polygon 190211.94802 4391.18056 136 754 BOS
Polygon 18340.12570 1410.71436 142 498 BOS
Polygon 5140.88163 851.55931 143 496 BOS
Polygon 9789.74784 1256.80532 147 497 BOS
Polygon 40446.10615 815.13400 157 1168 BOS
Polygon 205431.05455 5264.63457 158 722 BOS
School Attendance Area RealignmentSchool Attendance Area Realignment
School planners, working with parents, can make better new school boundary decisions.
DHS Child Care Provider LocationsDHS Child Care Provider Locations
This application will let parents find daycare providers near their home or job.
DOT Commuter RidematcherDOT Commuter Ridematcher Allows County
Transportation operators to geographically match commuters with each other through the WMCOG Ridematch database.
DTA BOE MapsDTA BOE Maps
DTA Assessors use GIS to create maps for Board of Equalization cases showing the subject parcel and comparable properties.
OCP Employer StatisticsOCP Employer Statistics
Planners use GIS to thematically display multiple databases to analyze local employer job trends.
# Employers by Traff ic Analysis Zones
1 - 609609 - 20402040 - 59125912 - 11189
DHCD Conservation Area Study
Each parcel could be classified and displayed according to its housing condition.
Population DemographicsPopulation Demographics
Budget analysts combined demographic data with GIS census track boundaries to produce population density maps.
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I-66
Rt. 50
DRANESVILLE
HUNTER MILL
SULLY PROVIDENCE
MASON
BRADDOCK
SPRINGFIELD
LEE
MT.VERNON
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I-66
Rt. 50
McLEAN
BAILEY'S
LINCOLNIA
BULL RUN
ANNANDALE
SPRINGFIELD
LOWER POTOMAC
POHICK
MT.VERNON
ROSE HILL
FAIRFAXJEFFERSON
VIENNA
UPPERPOTOMAC
Rental Housing LocationsN
EW
S Fairfax County Office of Management and Budget
Number of Units by Supervisor District Number of Units by Planning District
2 0 2 4 MilesMap Authors: Ken Holbert (GIS), Sonja Vaughan (OMB)Housing Data: OMBBasemap Data: GIS and Mapping Services
Supervisor Districts by number units821 - 17291729 - 53265326 - 71487148 - 1006310063 - 10918
Rental Complexes by Structure Type××××
GARDENHIGHRISEMIDRISETOWNHOUSE
Planning Districts by number of units726 - 11001100 - 24432443 - 44584458 - 58445844 - 9392
TOWNHOUSEMIDRISEHIGHRISEGARDEN
××××
Rental Complexes by Structure Type
BRADDOCK
DRANESVILLE
HUNTER MILL
LEE
MASON
MT. VERNON
PROVIDENCE
SPRINGFIELD
SULLY
120001000080006000400020000
Number of Units by Supervisor District
ANNANDALEBAILEYS
BULL RUNFAIRFAX
JEFFERSONLINCOLNIA
LOWER POTOMACMCLEAN
MOUNT VERNONPOHICK
ROSE HILLSPRINGFIELD
UPPER POTOMACVIENNA
9000800070006000500040003000200010000
Number of Units by Planning District
Print Date: 5/13/98
1”=200’ Data Conversion1”=200’ Data Conversion
Data conversion has started in the southeast corner and will move North and then West
10% of the planimetric tiles (building footprints and paved areas) have been delivered
75% of Orthophotography has been delivered
Expected completion: Spring 1999
Will be Completed Spring of 1999Will be Completed Spring of 1999
##
#
#
#
#
#
#
250
225
247.5264.7
239.2
223.0
241.9
262.2
245.9
250.0
245.3
Will be Completed Spring of 1999Will be Completed Spring of 1999
R-4
R-3
R-3
R-3
C-6
C-6
C-8
C-6
C-8
R-4
Will be Completed Summer of 1999Will be Completed Summer of 1999
Public Access to GISPublic Access to GIS Maps and Publications
– 1st floor of Government Center– GIS and Mapping Suite 117
CDROM Data Distribution– Single site license: $75.00 – Arc/Info Coverage Format– All layers except Police and Soils– Copyrighted
County Internet Site– www.co.fairfax.va.us/gov/dit/gis/default.htm