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American Public Transportation Association

 Policy Experts

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​​​Darnell Chadwick Grisby, MPP
Director, Policy Development and Research
Darnell Grisby leads industry strategy and research for the American Public Transportation Association. He is an expert on the emerging urban mobility landscape and its impact on a wide range of industries, markets and brands. He is a sought after speaker whose work has been featured in the New York Times, Wall Street Journal, and National Public Radio. He is an experienced practitioner of the complete set of tools to influence policy: thought leadership, corporate contributions, philanthropic giving, diversity initiatives, direct lobbying, and grassroots and grasstops organizing. He was named among the “Top 40 Under 40” by Mass Transit magazine, a 2017 Next City Vanguard, and has degrees from Harvard University’s Kennedy School of Government and the University of California, Los Angeles. He is a native of Riverside, California and currently resides in the walkable core of Washington, DC.​

See Darnell's Presentations and Talks​

​Matthew Dickens
Senior Policy Analyst
Matt Dickens is a Senior Policy Analyst for the American Public Transportation Association. He is an expert on public transportation ridership, fare policies, and industry data trends. Matt's research has been featured in national news reporting by C-SPAN, the New York Times, and other outlets. He collaborates with other policy department staff in producing reports on issues affecting the transit industry and maintains APTA’s databases and annual reports on transit industry ridership, vehicle fleets, infrastructure, and fares. He has a BA in Geography from Macalester College in St. Paul, MN.​​ Matt was born and raised in midcoast Maine and currently lives in Washington, DC.

​Mac Hughes-Cromwick
Policy Analyst
Mac Hughes-Cromwick was proudly born in Pittsburgh, PA, before moving to Ann Arbor, Michigan. He grew up with a strong interest in transportation due in large part to his Mom’s position at Ford Motor Company. Upon graduating high school, Mac’s interest in cities led him to the country’s largest, to study at New York University.​ While at NYU, he pursued a joint B.A. in Mathematics and Economics, with a minor in Urban Design and Architecture Studies. In his senior year, Mac was President of an on-campus service club that delivered over 11,000 pounds of leftover dining hall food to local homeless missions. Mac graduated from NYU in May of 2017 as a University Honors Scholar. Mac has pursued​ his transportation interests through two internships, one at the Center For Automotive Research in Ann Arbor, and the other at the Center For Transportation Excellence in Washington. Mac enjoys politics, history, urban development, hiking, golf, and of course, riding public transportation.​
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