nc onemap: building the statewide geospatial data resource jeffrey brown center for geographic...
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NC OneMap: Building the Statewide Geospatial Data Resource
Jeffrey BrownCenter for Geographic Information and
AnalysisOctober 28, 2004
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NC OneMap is … free, statewide data resource
distributed network of servers
Internet-based map viewer
decision support tool with geospatial data as the hub
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NC OneMap is … resource for technical and management staff in federal, state, and local agencies
geospatial data discovery tool for the public
NC’s contribution to the National Map
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Geographic Information Coordinating Council
Gen. Stat. §143-725GIS policy group33 membersLocal, regional, state, and federal participationAdvises the Governor and General Assembly
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Data Inventory
Data, web mapping, applicationsDisplay and update onlineLocal government inventoryState survey underway
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GIS Applications AcrossNorth Carolina
0%
20%
40%
60%
80%
100%
Economic Development Emergency Management
GIS/ Mapping Planning/ Community Development
Police/ Public Safety Public Works
Utilities Water/ Waste Water
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Local Governments Who Create/Update/Integrate/Distribute GIS Data
82.8%
6.3%
10.9%Yes
No (but will withinthe next 12months)No (no timeline)
Estimated $162M investment has been made at the local level
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NC OneMap Initial Data Layers Produced by Cities and Counties
0%
20%
40%
60%
80%
Ortho Cadastral Roads Municipal Bnd.County Bnd. ETJs Surface Waters ElevationLand Use Airports Schools UniversitiesHospitals Storm Surge Police Stations Fire StationsLandfills Watersheds Wetlands Hazardous Disposal SitesBuilding Footprints Future Land Use Water Lines Sewer Lines
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Internet Access to Data
On-line Mapping Application?
45.3%
3.6%
51.1%
Yes No Not Sure
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Requirements
InterviewsDataFunctionalityDirection for Release One Development
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Summary of Requirements
Easy to Use Viewing – Cross JurisdictionalAddress Locator; Zoom To Tools; RouterMetadataPrintDownloadOverview Map
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Summary of Requirements
BufferImpact AreaSearch From PointSupporting DataDesign Elements: Data Groupings, Avoid Clutter; Avoid Animation; Base Layer Default Strategy
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Involvement
Core TeamCommunity GIS CoordinatorsCity/County ManagersPrivate SectorUSGS, CGIA, State Agencies, RegionsYears of Partnering on NSDI
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Results, and work in progress
June 30 release and ongoing updates
48 Communities today, 92 interested
30 Counties, 14 Cities/Towns, 4 COGS
185 data layers from state & local
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Results, and work in progress
Cost of local aerials on NC OneMap today is $4.5 million
Federal, state and private streaming
18 Functions
Distributed network, distributed Services
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How does NC OneMap work?
Map viewer for web browser
High speed Internet
Geospatial backbone: Open GIS protocols enabling multiple servers to serve maps to the viewer
Culture: data sharing, standards, consistency, maintenance, metadata
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www.nconemap.net
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NC OneMap Viewer
20Zoom to a region and display federal data: land cover and roads
21Zoom to a set of counties and display water supply watersheds
22Zoom to a county and display sites and major roads (Wake County)
23Zoom within a county and display labeled points and a reference theme
24Zoom to a neighborhood and display local streets (Wake County)
25Zoom to a site and display imagery (Wake County)
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27Tax parcels and imagery, Nags Head
28High resolution imagery served from Mecklenburg County
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33Zoom to a Point tool request
34Zoom to a Point tool result
35Address Lookup tool request
36Address Lookup tool result
37Measure tool result
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39Asheville region with shaded relief and major streams
40Elevation Profile tool request
41Elevation Profile tool result
42Elevation Query tool result
43Elevation Query tool result – Old Capitol Building
44Address Lookup tool
45Address Lookup tool result – Biltmore Estate entrance
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47Data Extract tool request summary
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Goals of Strategic Plan
Establish NC OneMap foundationCapture the major investments neededIdentify needs for maintenance of the resource
DataInfrastructure: hardware, software, applications, system hosting services, staff
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Benefits of NC OneMap
Cost savings in data collection through regional and statewide approaches
Data consistency across jurisdictions
Much easier access to data for addressing local, regional, and statewide issues
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Benefits of NC OneMap
More efficient use of finite staff resources across all governments
Better, more consistent products from an integrated data resource
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NC OneMap
Showcase what is available
Expose what is missing
Framework for custom map viewers
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What About Statistics?Features: boundaries, lines and point locations
Tabular data
Joining tables to features
Classifying features
53Thematic map using Census data.
54Census data mapped with legend visible on the right.
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What are the topics?Population and housingEmployment and incomeSocio-economic indicatorsVital statistics and healthOthers __________________
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Who are the users?Private business / markets
Public policy and advocacy
Research and analysis
Others: _______________
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What are the common questions and requests?Population characteristics within a distance of a location
Income and poverty by neighborhood
Workforce characteristics by region
Others__________________________
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What are the functions needed?Interactive map designThematic maps / cartographic elementsPrinting Download resultsOthers__________________________
