Rebecca M. Brewster

President and COO
Atlanta, ga

Rebecca Brewster is President and Chief Operating Officer of the American Transportation Research Institute (ATRI). 

Ms. Brewster is the recipient of several awards including Fleet Owner magazine’s 2016 Dozen Outstanding Women in Trucking, the 2013 Influential Woman in Trucking award from the Women in Trucking Association, and the 2010 J.R. Bob Halladay award given by the 50 state trucking associations.

Ms. Brewster has been with ATRI for over 27 years. Prior to that, she was the Public and Governmental Affairs Director for the Cary, North Carolina Chamber of Commerce and a Fleet Analyst with Moen, Inc. Ms. Brewster has a B.A. in English from Wofford College and she is a Fellow of the North Carolina Institute of Political Leadership.

Daniel Murray

Senior Vice president
Minneapolis, MN

Daniel Murray has more than 26 years of experience in a broad range of transportation fields including trucking research and economics, transportation safety technologies and autonomous vehicles.

As Senior Vice President for the American Transportation Research Institute (ATRI), Mr. Murray is responsible for managing ATRI’s transportation research, testing and evaluation, and leads multiple national activities including the U.S. DOT-sponsored Freight Mobility Initiative. Prior to his employment with ATRI, Mr. Murray spent several years working in economic development for a Chicago business consortium and four years developing transit programs, policy and funding with the Regional Transit Board in Minneapolis/St. Paul, Minnesota.

He is actively involved in the National Academies’ Transportation Research Board as Vice Chair of the Trucking Research Committee, and presently sits on the Boards of the Freight Mobility Research Institute, Mid-America Transportation Center and the Minnesota Freight Advisory Committee.

Dan received his BA from Gustavus Adolphus College in St. Peter, Minnesota, and his MS from Northwestern University in Evanston, Illinois.

Jeffrey Short

Vice President
Atlanta, ga

Jeffrey Short is the Vice President of the American Transportation Research Institute (ATRI) and is based in Atlanta, GA. His areas of expertise include transportation policy and regulations, data management and analysis, and freight-related safety, technology, and performance measurement.

During his nearly 17 years with ATRI, Mr. Short has worked directly with anonymous telematics data, expanding the scale and scope of the organization’s truck GPS data research and analysis. Through this work he has built systems for measuring travel time, speed and reliability indices for freight movement across North America.

Mr. Short has published several trucking industry-focused reports on transportation finance and the costs/benefits of key funding mechanisms. Additionally, he has led numerous research initiatives assessing the impact of federal regulations, particularly those focused on the driver hours-of-service rules. His other research interests include safety culture within organizations and emerging freight technologies.

He holds a BA from Emory University and an MS from the Georgia Institute of Technology.

Mike Tunnell

Director of environmental Research
sacramento, ca

Mike Tunnell is the Director of Environmental Research for the American Transportation Research Institute (ATRI).

With more than 25 years of experience, Mike has participated in numerous ATRI studies involving the energy and emissions impacts of freight transportation. These studies have investigated sustainable practices and strategies, the use of fuel saving technologies and equipment, and the environmental impacts of congestion relief. His experience includes designing and administering surveys and interviews to acquire freight-related data and contract/task management. 

Prior to joining ATRI, Mike worked in the fields of air quality, transit and civil engineering.

Alexandra Shirk

Research Associate
New York, NY

Alexandra Shirk is a Research Associate with the American Transportation Research Institute (ATRI). Her areas of expertise include geographical information system analysis and general qualitative and quantitative analysis.

Ms. Shirk plays an ongoing role in a number of Freight Performance Measures (FPM) research initiatives. She has led numerous truck parking studies that include collecting truck driver perspectives via custom designed surveys, and quantitative truck parking analyses with ATRI’s FPM truck database. Ms. Shirk has contributed to a number research studies, including research regarding the impacts of marijuana legalization on the trucking industry. She also helps to maintain and update ATRI’s annual truck bottleneck list.

Prior to joining ATRI, Ms. Shirk was a GIS Research Analyst with a private consultant. While there, she was part of a team that developed customized GIS applications for individual clients.

Carla Rose

Research Assistant
Atlanta, GA

Carla Rose is a Research Assistant with the American Transportation Research Institute (ATRI).  Ms. Rose has been with ATRI for 13 years and has over 25 years of administrative experience in the trucking industry, including more than a decade of experience arranging meetings and workshops in the trucking and transportation industry.  She has served as a meeting coordinator for dozens of industry meetings, workshops and focus groups. 

In addition to her meeting planning experience, Ms. Rose also provides research support for the entire ATRI staff which includes survey development, data collection and formatting research publications. She also maintains ATRI’s database of industry stakeholders, manages the ATRI website, communications and all aspects of ATRI’s social media presence.

Prior to joining ATRI, Ms. Rose did freelance publishing, graphic and web design.

Nathan Williams

Research Analyst
Minneapolis, MN

Nathan Williams is a Research Analyst for the American Transportation Research Institute (ATRI). With a background at the intersection of economics, mathematics, and statistics, his areas of expertise include statistical methods, data analysis, and qualitative research.

As a Research Analyst for ATRI, Mr. Williams has provided analysis in a number of current studies, including the impact of large verdicts on the trucking industry and supply chain impacts of COVID-19. He plays an ongoing role in the data collection and analysis of motor carrier financial data for ATRI’s annual “Operational Cost in Trucking” report. In addition, Mr. Williams also generates state-level trucking statistics for state transportation associations, and has devised and implemented quantitative methodologies for parking-related metrics.

Prior to his work with ATRI, Mr. Williams worked for the Federal Communications Commission, performing qualitative and quantitative analysis on policy-related issues.

Erin Speltz

Research Analyst
Minneapolis, MN

Erin Speltz is a Research Analyst with the American Transportation Research Institute (ATRI). With a background in economics, her areas of expertise include qualitative and quantitative analysis.

As a Research Analyst with ATRI, Ms. Speltz has contributed to a number of studies, including assessing the impact of large verdicts on the trucking industry, a driver detention study, and researching the driver shortage.

Prior to joining ATRI, Ms. Speltz completed a Fulbright Fellowship in Bulgaria. While there, she taught English as a second language at a math high school in Varna.

Joy Miller

Contract Manager
arlington, va

Joy Miller is the Contract Manager for the American Transportation Research Institute (ATRI). Ms. Miller has almost 30 years of government contract management experience, with a specialization in transportation and trucking research.

Ms. Miller is responsible for ATRI’s contract administration duties, including budget development and negotiations, auditing, state & federal compliance, and finance & accounting.

Ms. Miller received her B.A. from Stephens College, and has held multiple public and private positions including congressional staff support.