Download - Transportation Data Activities
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Statewide Centerline Project
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Project Goals
• Develop a complete statewide public road centerline
• Keep the centerline Up-To-Date• Ensure accurate Local Government mileage• Ensure efficient statewide road inventory• Build relationships with Local Agencies • Help foster a cooperative environment
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Centerline Data Issues• Roads Extending Beyond or Stopping Short of County
Boundary• Topological Errors (Overlapping & Intersecting Road
Segments, Dangles)• County vs. City Ownership• Out-of-Date Centerlines• Bad Centerline Geometry• Inaccurate Attribution• Erroneously Coded Roads• Unresolved “Public” and “Unknown” Roads
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Out-of-Date Centerline
The Centennial Olympic Park Vicinity
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Updated Centerline
The Centennial Olympic Park Vicinity
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Where Are We?
As of June 28, 2013
• 120 Complete• 39 In Progress
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How Can You Help? Provide Digital (GIS) Street, Boundary and Parcel
Data Share Street Attribute Data Identify Road Ownership Resolve Boundary Road Issues Be Available To OTD For Consultations Via Phone,
E-Mail or Meetings Work With OTD and Neighboring Agencies To
Resolve Conflicts
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2010 Urban Area Boundary Project
Began Summer 2012
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Urban and Rural Classification
After each decennial census, the Census Bureau identifies and classifies urban and rural areas.
The Census Bureau identifies urban and rural areas solely for the purpose of tabulating and presenting statistical data.
1906 - Urban areas of at least 2,500 people 1950 - Urbanized areas of 50,000 or more people 2000
Urban places of at least 2,500 people were identified outside urbanized areas.
Urban clusters of 2,500 - 49,999 were defined
10
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2000 Atlanta Federal-Aid Urban Area Boundary
• FHWA "adjusted" or "smoothed" Urbanized Areas and Small Urban Areas that are used for transportation planning purposes
• Expands Census boundary to define boundaries to better reflect local conditions.
Atlanta 1990 CensusAtlanta 2000 CensusAtlanta 2000 Federal-Aid
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Extent of Functional Systems
Percentage Guidelines For Federal Functional Classifications
Highway Functional Classification
Percent of Total
Rural Miles Urban Miles
Arterials 6 - 12 15 - 25Collectors 20 - 25 5 - 10Local roads 65 - 75 65 - 80
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Functional Classification System
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Preliminary Timeline2010 Urbanized Area Boundary submit for FHWA approval(Current – 9/13)
GDOT Incorporates approved UAB’s into data systems (9/13 – 12/13)
MPO’s prepare routes for FC and/or NHS modifications(current - 12/13)
GDOT evaluation & reconciliation with MPOs/FHWA(1/14 – 6/14)
GDOT Incorporates approved FC & NHS into data systems (6/14 – 12/14)
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For Additional Information
Contact:
Scott SustenData Administration Group LeaderOffice of Transportation Data
770-986-1434