The first hearing is scheduled for Sept. 7 at Waterbury's municipal building.
Other public meetings will be held in Newington, Stamford and New London. The commission is preparing its annual recommendations to the governor, the state's transportation commissioner and the General Assembly's Transportation Committee.
The commission is seeking comment concerning CT Transit bus service, Metro-North train service, dial-a-ride, transportation for people with disabilities, and other issues.
Last year's commission report helped play a role in plans for a transportation center in Waterbury.