TY - SER AU - Rubner, Jeanne TI - Next Stop: Bonus for Braking KW - SUSTAINABLE MOBILITY KW - HYBRID DRIVES FOR BUSES N1 - With a view to helping big cities get a handle on their traffic problems while reducing fuel consumption, engineers are working on environmentally-compatible means of mass transit. Buses, for instance, could operate more efficiently if their diesel drives were supplemented with an electric motor that charges itself with braking energy. With its highly efficient ELFA hybrid drive, Siemens now has a leading role in hybrid bus technology ER -