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We worked on developing vehicles for the Dual Mode Bus System, and have completed a system which can be technically put into practical application. This paper introduces an outline of the system and vehicle. As regards the operational stability of the lateral guidance system, analyses, computations using a simulation model, and experiments using test cars were conducted on two types of guidance systems, a linked type, which is to link mechanically the guidance wheel with the steered wheel, and a non-linked type.

An automatic, falling, occupant-protecting net is being developed for spreading in front of automobile occupants in the time interval between vehicle impact and occupant collision. The device is designed to counteract forward body acceleration and minimize head, neck, and chest injuries. This device was investigated by sled and barrier tests using anthropomorphic dummies. Significant improvements in occupant kinematics and remarkable reduction in head and chest impact force has been observed. Some problems such as whiplash injury await solution but continuing investigation of proposed measures of correction show that they are not insurmountable.