ABOUT US
Our Mission
The mission of the Transportation Management Association of Chester County (TMACC) is to activate, foster and facilitate cooperation between the public and private sectors of Chester County; to identify, evaluate and analyze significant transportation issues and to recommend solutions that reduce congestion and improve air quality.
Our History
TMACC was founded in May of 1992 as the Chester Valley TMA and consisted of 14 Founding Members, which include some of our current members today: Chester County Intermediate Unit, Great Valley Regional Chamber of Commerce, Krapf’s Coaches, Inc., PennState Great Valley, and Saul, Ewing, Remick & Saul. In June of 1995, the Chester Valley TMA Board of Directors changed our name to the Transportation Management Association of Chester County to better capture the members we wanted to acquire.
Today, TMACC represents the expanding region of Chester County and continues to advocate for sustainable transportation practices and connectivity. TMACC’s membership represents over 20,000 commuters in Greater Philadelphia and includes a range of organizations in engineering, planning, law, consumer goods, finance, hospitality, education and more.
Our Staff
Board of Directors

Randy Waltermyer
Chair
Traffic Planning and Design, Inc.
Nathan M. Cline
Vice-Chair
Pennoni
Amanda Sundquist
Unruh Turner Burke & Frees PC
Kristin S. Camp
Buckley, Brion, McGuire & Morris, LLP
Catherine Bianco
Workspace Property Trust
Danielle Wiley
Vanguard
Matthew Kozsuch
McMahon Associates, Inc.
Neal Fisher
Hankin Group
Thomas Bonner
Exelon
Erin McPherson
Tredyffrin Township
Joanne Walter
Secretary
Saint-Gobain
Steve Brown
East Whiteland Township
Pamela Conti
WSP
Erica Mcleod
Penn State Great Valley
Bruce Masi
Gannett Fleming
Patricia Shields
West Chester University
Amy Bernknopf
Ex Officio
DVRPC
Mark Cassel
Ex Officio
SEPTA
Commissioner Josh Maxwell
Ex Officio
Chester County Commissioner
Gene Blaum
Ex Officio
PennDOT
Gary Smith
Board Emeritus
Chester County Economic Development Council
Janet Flynnn
Ex Officio
PennDOT
Brian N. O'Leary
Ex Officio
Chester County Planning Commission