Abstract: A roadway of the type over which motor vehicles pass, e.g. automobiles, trains, trolleys, etc., is disclosed where the roadway is one positioned in the path of movement of such vehicles and is provided with a power generating means for generating power in response to the movement of such vehicles over the roadway. The power generating means is responsive to and actuated by the weight of the vehicles as the vehicles pass thereover. The power generating means comprises a vertically displaceable generally planar member which is generally co-planar with the roadway. The power generating means comprises a fluid housed in a fluid housing which is in fluid communication with a generator via a transmission means. The fluid, while in the housing, is in contact with a displaceable bearing surface which when displaced acts upon the fluid, the displaceable bearing surface in turn being connected to the generally planar member.