Importance

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Abstract

A dual-mode transportation system comprises a monotube guideway along which a dual-mode vehicle travels in a first mode of operation, the dual-mode vehicle having a second mode of operation in which it travels along a roadway. Each dual-mode vehicle carries its own four-wheel dolly for engaging the guideway as the vehicle travels along the guideway, the dolly being retractable so as to be stored in a recess in the roof of the vehicle. The dolly carries a flexible pick-up element which extends to an electric supply line in the guideway so as to receive and provide to the vehicle centrally generated power provided by the electric supply line. Power received by the vehicle during travel along the guideway is used not only to motivate the vehicle along the guideway but also to recharge a battery which powers the vehicle during conventional roadway travel. Preferably, the system is computer-controlled so as to maintain proper distance between and speed of vehicles, locate and identify disabled vehicles, properly route vehicles to their destination, and adjust vehicle speed based on fluctuation of system load. The duel-mode vehicle is, preferably, a three-wheel vehicle having a single driven rear wheel, capable of 360.degree. rotation.

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First Claim