Transportation Data Activities

John HudlerTransportation Data Group Leader

770-986-1366jhudler@dot.ga.gov

Statewide Centerline Project

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

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Segments, Dangles)• County vs. City Ownership• Out-of-Date Centerlines• Bad Centerline Geometry• Inaccurate Attribution• Erroneously Coded Roads• Unresolved “Public” and “Unknown” Roads

Out-of-Date Centerline

The Centennial Olympic Park Vicinity

Updated Centerline

The Centennial Olympic Park Vicinity

Where Are We?

As of June 28, 2013

• 120 Complete• 39 In Progress

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

2010 Urban Area Boundary Project

Began Summer 2012

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

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

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

Functional Classification System

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)

For Additional Information

Contact:

Scott SustenData Administration Group LeaderOffice of Transportation Data

770-986-1434

ssusten@dot.ga.gov