Denmark’s RUF concept is one of the earliest dual mode system designs.  The designer of RUF is one of the originators of the dual mode electric vehicle concept and made a major contribution by bringing attention to these ideas,  triggering a wave of creative effort in this area.

One of the great virtues of the RUF system is its very low-cost track design.  The trade-offs for this virtue are the lack of emergency exits from the cars and the need for custom-designed vehicles. Visit the RUF website here