A novel truss track assembly for use in transporting passenger vehicles provides two sets of tracks for supporting two passenger vehicles concurrently. The truss track assembly includes four running rails for mounting passenger vehicles and a central support rail. A series of frame elements are periodically secured to the running rails and the central support rail to support and maintain the parallel relationship of the running rails and the central support rail. The truss track assembly may be "split" into two individual truss track assemblies wherein the individual truss track assemblies each accommodate a passenger vehicle or a train of passenger vehicles. The present invention further provides a novel side-mount vehicle suitable for mounting of the present invention on the truss track assembly. The side-mount vehicle improves sight line feature by locating the passengers off to the side of the track; rather than locating them above the track as with conventional designs, or below the track as with suspended designs. A side-mount passenger vehicle travels along a pair of parallel rails fixed in space. The rails of the present invention remain oriented in an essentially vertical plane with respect to a seated passenger, as opposed to the horizontal orientation associated with more conventional roller coaster rides. Seats are positioned on a cantilevered beam which is affixed at one end to a main chassis beam. The main chassis beam is secured to the parallel rails through two sets of wheel assemblages. The side-mount feature of the present invention enhances and intensifies passenger thrill and excitement because of substantially unrestricted passenger view in all directions, resulting in a "free flying" experience.

A safety device for a construction in which a person is able to sit and with which movements can be executed, for example for an attraction for a fairground or an amusement park. The safety device includes a base that can be fixed to the construction, a restraint that at one end is pivotably connected to the base and that can be moved between a lifted-up position such that the person is able to sit down in the construction or to leave the latter, and a safety position in which the person is secured in the construction, and locking means for locking the restraint in the safety position. The locking means has a locking component that is located at the end of the restraint that faces away from the end where the restraint is pivotably mounted.

A rail assembly is built from three parallel cylindrical members, wherein a first rail provides support for a large wheel. The large wheel has an axle protruding from each side, wherein the outbound side has a frame attached to the axle and a seat attached to the frame. The rail side of the axle connects to a second rail acting as a pilot/guide for the travel of the large wheel. A third rail and interconnections provide structural rigidity for the rail assembly. The riders fly through a roller coaster layout sitting only in a seat, facing the passing environment head on at high speeds, thereby experiencing a free flight sensation. A people mover embodiment adds a motor to the wheel to move the wheel along a relatively flat layout. An optional flip means functions to selectively engage the axle with the rotating large wheel (nominally via a reduction gear) to flip the riders 360.degree.. Optionally a group of large wheels can be coupled together to form a train.