Abstract: A subway vehicle for service in a tunnel which has a circular cross-section, wherein, a car body having an asymmetrical cross-section with a first longitudinal side having a vertical side wall with the necessary windows and doors in this vertical side wall and having an opposite second longitudinal side which conforms to the configuration of the tunnel for travel therethrough. The car body has an inner wall spaced from the opposite second longitudinal side and the space between this inner wall and the opposite first longitudinal side defines the passenger space. The inner wall does not contain any windows. In addition, the space between the inner wall and the outer second longitudinal side defines a utility compartment space between the opposite second longitudinal side wall and the inner longitudinal wall for accommodating air, heating, and cable channels.

Abstract: A truck for the pivotal support of two car bodies, particularly of articulated rail motor cars, comprises a truck frame having a vertical pivot for each car mounted in spaced longitudinal locations on the truck frame. A transversely extending swiveling bolster is centrally mounted for pivoting movement on each vertical pivot and each bolster includes a spring support adjacent each respective end for resiliently supporting the associated car body. The truck also carries slide means, such as interengaged slide plates on the truck and the bolster underlying the spring supports for slidably supporting the respective ends of the bolster on the truck.