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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
StateContactDescriptionOrganization
AlabamaJohn-Michael WalkerTAC representativeAlabama Department of Transportation
Linda Guin Alabama Department of Transportation
Sonya Baker Alabama Department of Transportation
ArizonaKerry WilcoxonTAC representativeArizona Department of Transportation
ArkansasAdnan QaziTAC representativeArkansas Department of Transportation
CaliforniaThomas SchriberTAC representative

California Department of Transportation

Ken Kochevar 
Adbel Beshair 
John Ensch 
ColoradoDavid SwenkaTAC representative

Colorado Department of Transportation

David Reeves 
ConnecticutJoseph P. OuelletteTAC representativeConnecticut Department of Transportation
Florida

Joseph Santos

TAC representative

Florida Department of Transportation
Shaun Davis Florida Department of Transportation
GeorgiaMichael TurpeauTAC representativeGeorgia Department of Transportation
IllinoisFiliberto Sotelo Illinois Department of Transportation
Tim SheehanTAC representative
IowaJan Laaser-WebbTAC representativeIowa Department of Transportation
KansasSteven BuckleyTAC representativeKansas Department of Transportation
KentuckyNathan RidgwayTAC representativeKentucky Transportation Cabinet
Jarrod Stanley Kentucky Transportation Cabinet
LouisianaApril RenardTAC representativeLouisiana Department of Transportation and Development
Jose Rodriguez 
MarylandEric Tabacek 

Maryland State Highway Administration

Minsok KimTAC representative
Massachusetts

Kevin Fitzgerald

TAC representativeMassachusetts Highway Department (MassHighway)
MichiganMark BottTAC representativeMichigan Department of Transportation
MinnesotaBrad EstochenTAC representativeMinnesota Department of Transportation
Derek Leuer  
MississippiMark ThomasTAC representative

Mississippi Department of Transportation

MissouriJon NelsonTAC representativeMissouri Department of Transportation
MontanaTricia BurkeTAC representative

Montana Department of Transportation

NebraskaDan WaddleTAC representativeNebraska Department of Transportation
NevadaKen MammenTAC representativeNevada Department of Transportation
New HampshireMichelle MarshallTAC representative

New Hampshire Department of Transportation

Ron Grandmaison 
New York

Geoff Wood

TAC representativeNew York State Department of Transportation
North CarolinaBrian MayhewTAC representative

North Carolina Department of Transportation

Shawn Troy 
North DakotaShawn KuntzTAC representativeNorth Dakota Department of Transportation
Oklahoma

Matt Warren

TAC representativeOklahoma Department of Transportation
OhioMichael McNeillTAC representativeOhio Department of Transportation
OregonChristina McDaniel-WilsonTAC representativeOregon Department of Transportation
PennsylvaniaJason HershockTAC representative

Pennsylvania Department of Transportation

Rhode IslandBob Rocchio 

Rhode Island Department of Transportation

Sean RaymondTAC representative
South CarolinaJoey RiddleTAC representativeSouth Carolina Department of Transportation
South DakotaAndy VandelTAC representativeSouth Dakota Department of Transportation
TennesseeBrandon DarksTAC representativeTennessee Department of Transportation
TexasDarren McDanielTAC representativeTexas Department of Transportation
UtahJeff LewisTAC representativeUtah Department of Transportation
Robert Miles 
VirginiaStephen ReadTAC representativeVirginia Department of Transportation
WashingtonJohn MiltonTAC representativeWashington Department of Transportation
Mike Dornfeld
WisconsinBrian PorterTAC representativeWisconsin Department of Transportation
Andrea Bill 

University of Wisconsin-Madison

WyomingJoel MeenaTAC representativeWisconsin 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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