Transportation Data
Activities
Jane H. Smith
State Transportation Data Administrator
770-986-1360
janesmith@dot.ga.gov
Local Centerline Mileage
• In January 2011, GDOT Commissioner Vance
Smith sent a letter to all of Georgia’s Elected
Officials
– 159 Counties
– 531 Municipalities
• We requested the they report the total local
public road centerline mileage (Paved or
Unpaved)
• This information is needed to comply with
State and Federal Law
• LMIG funds will be distributed to Local
Governments based on paved and unpaved
centerline miles and population
• TIA also requires an accurate accounting of
centerline miles to calculate funding for each
Regional Commission
• As of May 3rd, we received reports from
– 152 Counties (96%)
– 325 Cities (61%)
• We provide the mileage to Local Grants Office
– If local government reported, we provided that
mileage
– If local government did not report, we provided
our recoded mileage
• Confirm that your local government has
reported its Center Line Mileage to GDOT on
the official Reporting Form
• As a Local Government, you are required
within 90 days to inform GDOT when you
have:
– Acquired / Accepted / Abandoned a road
– State Code 32-4-41 and 32-4-91
Contact:
Doug Alexander
Local Government Liaison / Data Manager
Office of Transportation Data
770-986-1436
dalexander@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)
• Conflation Process Errors
• Out-of-Date Centerlines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 July 15, 2011
• 4 Complete
• 31 In Progress
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Provide Digital (GIS) Street and Boundary 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
Contact:
Michael D. Morris
Local Government Coordinator
Office of Transportation Data
770-986-1366
mimorris@dot.ga.gov
Begin 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
17
Atlanta 1990 Census
Atlanta 1990 Census
Atlanta 2000 Census
• 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
Phase I: Preliminary phase
(Current – 6/30/12)
Phase II: Product Development
(6/12 – 12/12)
Phase III: Local Government/FHWA Coordination
(1/13 - 6/13)
Phase IV: Result Reporting
(7/13 – 10/13)
Contact:
Clayton Carter
Federal Highway Coordinator
Office of Transportation Data
770-986-1366
clayton.carter@dot.ga.gov