TPAC reviews regional plans and federally funded transportation projects, and advises area leaders on transportation investment priorities and policies related to transportation. Such efforts include curbing greenhouse gas emissions and creating communities with easy access to public transit. The committee also helps identify needs and opportunities for involving the public in transportation matters.
TPAC's 21 members consist of technical staff from the same governments and agencies as JPACT, plus a representative from the Southwest Washington Regional Transportation Council, and six community members appointed by the Metro Council. In addition, the Federal Highway Administration and C-TRAN have each appointed an associate non-voting member to the committee.
TPAC meetings are generally held on the last Friday of the month, from 9:30 a.m. to 12 p.m. in the Metro Council Chamber (unless otherwise notified).