Abstract: The present invention provides a vehicle, system, and method for mass transit transportation, the system according to one embodiment including a plurality of passenger vehicles configured such that each passenger vehicle includes a passenger module (110) for transporting at least one passenger being attachable and detachable from a transport-base (120) and a rail-base (220). At each of a plurality of transport-rail interchange hubs (204) the passenger modules are transferred from transport-bases (120) to the rail-bases (220). At each of a plurality of rail-transport interchange hubs the passenger modules are transferred from rail-bases (220) to transport-bases (120). Each passenger vehicle is adapted to transport the at least one passenger on at least one of transport and rail without exiting the passenger module (110).