Abstract: A high-speed mass transport system having a monorail track disposed along a travel path and a monorail car with a driving unit suspended from the monorail track and a commuter car selectively attached to the driving unit. The high-speed mass transport system having also having an omnidirectional wheel transporter being adapted to selectively raise and lower to engage the commuter car, thus allowing the commuter car to detach from and reattach to the driving unit.

Abstract: A guide body can be prevented from being disengaged from a track rail even where the track rail is made of a low-rigidity material, thereby securing reliable movement along the track rail. The guide body includes: a large number of rolling elements that roll on a rolling surface formed along a structure, the guide body being movable relative to the structure; an endless circulation path through which the large number of rolling elements circulate; a load opening portion for allowing the large number of rolling elements in the endless circulation path to be held in contact with the rolling surface of the structure; and a guide portion formed on at least one side of the load opening portion so as to project toward the structure side with respect to projecting ends of the large number of rolling elements projecting from the load opening portion toward the structure side.

Abstract: A wheel body for carriages or other vehicles which are used, inter alia, in roller-coasters and other installations of amusement parks, the wheel body being made of a casting alloy which, expressed in percentages by weight, comprises the following elements:Al>94.000 Mg>4.500 Si<0.100 Cu<0.015 Fe<0.100 Mn<0.007 Ti<0.025 Zn<0.050 Sn<0.010.A method for fabricating the wheel body includes fitting the wheel body with a running tread of plastic such as polyurethane.