Transportation Data
Activities
John Hudler
Transportation Data Group Leader
770-986-1366
jhudler@dot.ga.gov
Statewide Centerline
Project
• 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
• 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• Out-of-Date Centerlines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
The Centennial Olympic Park Vicinity
The Centennial Olympic Park Vicinity
As of June 28,
2013
• 120 Complete
• 39 In Progress
 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
Began Summer 2012
 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
• 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 Census
Atlanta 2000 Census
Atlanta 2000 Federal-Aid
Percentage Guidelines For Federal Functional
Classifications
Highway
Functional
Classification
Percent of Total
Rural Miles
Urban Miles
Arterials
6 - 12
15 - 25
Collectors
20 - 25
5 - 10
Local roads
65 - 75
65 - 80
2010 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)
Contact:
Scott Susten
Data Administration Group Leader
Office of Transportation Data
770-986-1434
ssusten@dot.ga.gov