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Technical Advisory Committee (TAC) Members

The goal of this research is to develop reliable estimates of the effectiveness of safety improvements identified as strategies in the National Cooperative Highway Research Program (NCHRP) Report 500 Guidebooks through scientifically rigorous before-and-after evaluations of sites in the United States where these strategies are being implemented.

Technical Advisory Committee Members List
State Contact Description Organization
Alabama John-Michael Walker TAC representative Alabama Department of Transportation
Linda Guin   Alabama Department of Transportation
Sonya Baker   Alabama Department of Transportation
Arizona Kerry Wilcoxon TAC representative Arizona Department of Transportation
Arkansas Adnan Qazi TAC representative Arkansas Department of Transportation
California Thomas Schriber TAC representative

California Department of Transportation

Ken Kochevar  
Adbel Beshair  
John Ensch  
Colorado David Swenka TAC representative

Colorado Department of Transportation

David Reeves  
Connecticut Joseph P. Ouellette TAC representative Connecticut Department of Transportation
Florida

Joseph Santos

TAC representative

Florida Department of Transportation
Shaun Davis   Florida Department of Transportation
Georgia Michael Turpeau TAC representative Georgia Department of Transportation
Illinois Filiberto Sotelo   Illinois Department of Transportation
Tim Sheehan TAC representative
Iowa Jan Laaser-Webb TAC representative Iowa Department of Transportation
Kansas Steven Buckley TAC representative Kansas Department of Transportation
Kentucky Nathan Ridgway TAC representative Kentucky Transportation Cabinet
Jarrod Stanley   Kentucky Transportation Cabinet
Louisiana April Renard TAC representative Louisiana Department of Transportation and Development
Jose Rodriguez  
Maryland Eric Tabacek  

Maryland State Highway Administration

Minsok Kim TAC representative
Massachusetts

Kevin Fitzgerald

TAC representative Massachusetts Highway Department (MassHighway)
Michigan Mark Bott TAC representative Michigan Department of Transportation
Minnesota Brad Estochen TAC representative Minnesota Department of Transportation
Derek Leuer    
Mississippi Mark Thomas TAC representative

Mississippi Department of Transportation

Missouri Jon Nelson TAC representative Missouri Department of Transportation
Montana Tricia Burke TAC representative

Montana Department of Transportation

Nebraska Dan Waddle TAC representative Nebraska Department of Transportation
Nevada Ken Mammen TAC representative Nevada Department of Transportation
New Hampshire Michelle Marshall TAC representative

New Hampshire Department of Transportation

Ron Grandmaison  
New York

Geoff Wood

TAC representative New York State Department of Transportation
North Carolina Brian Mayhew TAC representative

North Carolina Department of Transportation

Shawn Troy  
North Dakota Shawn Kuntz TAC representative North Dakota Department of Transportation
Oklahoma

Matt Warren

TAC representative Oklahoma Department of Transportation
Ohio Michael McNeill TAC representative Ohio Department of Transportation
Oregon Christina McDaniel-Wilson TAC representative Oregon Department of Transportation
Pennsylvania Jason Hershock TAC representative

Pennsylvania Department of Transportation

Rhode Island Bob Rocchio  

Rhode Island Department of Transportation

Sean Raymond TAC representative
South Carolina Joey Riddle TAC representative South Carolina Department of Transportation
South Dakota Andy Vandel TAC representative South Dakota Department of Transportation
Tennessee Brandon Darks TAC representative Tennessee Department of Transportation
Texas Darren McDaniel TAC representative Texas Department of Transportation
Utah Jeff Lewis TAC representative Utah Department of Transportation
Robert Miles  
Virginia Stephen Read TAC representative Virginia Department of Transportation
Washington John Milton TAC representative Washington Department of Transportation
Mike Dornfeld
Wisconsin Brian Porter TAC representative Wisconsin Department of Transportation
Andrea Bill  

University of Wisconsin-Madison

Wyoming Joel Meena TAC representative Wisconsin Department of Transportation
Updated: Thursday, February 21, 2019

Contact Us

Turner-Fairbank Highway Research Center
United States Department of Transportation Federal Highway Administration
6300 Georgetown Pike
McLean, VA 22101
United States

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