The Interurban Transit Partnership, also known as The Rapid, is the authority that provides a variety of public transportation services for the Grand Rapids metro area and beyond. It is organized and operates under Michigan Public Act 196 of 1967.
The Rapid operates 19 fixed routes, demand-response services for people with disabilities and those living outside the fixed-route service area, car and vanpooling programs, and the Air Porter shuttle among other services.
The activities of The Rapid are overseen by a 15-member board of directors that represent the six municipalities in The Rapid service area.
