The Transit Advisory Committee is made up of 15 members appointed by the County Manager who live and work in Arlington.
- John Carten (Chair)
- James Davenport (Vice Chair)
- Harvey Berlin
- Erika Chiang
- Frank Krol
- RoseAnn Ashby
- Laura MacNeil
- Angelo Cocchiaro
- Andrew McAllister
- Mariela Garcia-Colberg
- David Sisson
- James Mountain
- Sohail Husain