Associate Members: Researchers & Consultants

Researchers and Consultants

GHSA Associate Members listed below are organizations or individuals who conduct research or consult on traffic safety issues. Learn more about GHSA’s Associate Membership program and how to apply here.

Cambridge Systematics, Inc.

Cambridge Systematics' highly trained and experienced professionals, several of whom have led state highway safety offices, understand your needs and bring the resources to meet deadline-driven tasks.

Casanova Powell Consulting

Casanova Powell Consulting LLC (CPC) is an independent, woman-owned, traffic safety consulting firm.

Clemson University Institute for Global Road Safety & Security

Clemson University’s Institute for Global Road Safety and Security (IGRSS) was approved in 2002 as a new program for Clemson University by the South Carolina Commission on Higher Education and is a niche area of Clemson University’s Automotive and Transportation Technology emphasis area.

Highway Safety North

Highway Safety North consults on behavioral traffic safety research, programs, and management.

Institute for Traffic Safety Management and Research

The Institute for Traffic Safety Management and Research (ITSMR) is an academic research center within New York's University at Albany.

Jennings Consulting, LLC

Jennings Consulting, LLC is pleased to partner with highway safety advocates and organizations to create, evaluate and implement strategies that eliminate death and serious injury.

John A. Webber

John A. Webber

Kara Macek Consulting LLC

Kara Macek Consulting LLC provides programming, communications, marketing and event management services for vibrant, mission-driven organizations.


Founded in 1967, Kimley-Horn is a full-service engineering, planning and environmental consulting firm with over 3,500 employees located in 80+ offices nationwide.

KLS Engineering, LLC

KLS Engineering, LLC provides professional consulting services to federal agencies, state and local governments, and a host of other transportation organizations. Learn more at

Leanna Depue

Leanna Depue

Lorrie Laing

Lorrie Laing

Mercer Consulting Group LLC

Mercer Consulting Group LLC offers an experienced team specializing in traffic safety programs.

NORC at the University of Chicago

NORC at the University of Chicago is a nonprofit research organization that delivers reliable data and rigorous analysis to guide critical programmatic, business and policy decisions.

North Dakota State University

North Dakota State University works with stakeholders to expand knowledge regarding programs and policies designed to promote safer rural transportation.

Preusser Research Group, Inc.

Preusser Research Group, Inc., (PRG) is a full-service research firm specializing in transportation, highway safety and issues related to drug and alcohol abuse.

Ryan Klitzsch

Ryan Klitzsch

Sam Schwartz Consulting

Sam Schwartz's Washington, D.C., area office specializes in consulting services that address critical issues in the areas of traffic safety and operations.

Terry A. Pence Consulting

Terry A. Pence is the retired director of the Texas Department of Transportation's Behavioral Traffic Safety Section. Terry has 40 years of highway safety program management experience and is a past recipient of GHSA’s Kathryn Swanson Public Service Award.

Thomas Gianni

Thomas Gianni is the retired Director of Maryland's Highway Safety Office and doing contracting work for GHSA Consulting Services Initiative (CSI).


In 2014, the toXcel Engineering and Behavioral Sciences Division was created to provide technical support to federal and state customers in the areas of transportation safety and operations, human factors, cognitive and social psychology, civil engineering, public health, communications and outreach, education, statistics, and other research topics.

Traffic Injury Research Foundation (TIRF)

The Traffic Injury Research Foundation (TIRF) develops and shares the knowledge that saves.

Traffic Safety Partners, LLC

Lee Axdahl applies his vast experience and leadership roles in national, regional, and statewide highway safety efforts through this consulting service.

Troy Costales

Troy Costales


Westat offers innovative professional services to help clients improve outcomes in health, education, social policy and transportation.