NOVELTY - The optimized apparatus has a plate assembly comprising a plate (102) with a hinge (104) on one end, transmission arms (106) extending from the bottom, and retention rings (108) on the end opposite the hinge to impede further upward travel of the plate beyond the hinge. The apparatus further includes a frame, at least one upward force device, an input shaft assembly, an output shaft assembly, and a generator.    USE - Optimized apparatus for converting momentum into useful work, especially for converting momentum from passing automobiles into usable energy or usable amount of electricity.    ADVANTAGE - The plate assembly provides the necessary strength and rigidity to support weight of passing automobiles while resulting in cheaper and lighter solution, since the plate is made from AISI type 304 steel. The plate has a 72 inch width, enabling the plate assembly to be easily deployed on multi-lane roads and connected either in parallel or series with other plates. The plate may also be wide enough to span one lane of roadway, maximizing plate impacts from both front and rear wheels of the vehicle. Speed ratio from the input to the output of the apparatus is optimized through series of pulleys. Apparatus weight may further be reduced by minimizing number of custom-made parts.    DETAILED DESCRIPTION - The optimized apparatus has a plate assembly comprising a plate (102) with a hinge (104) on one end, transmission arms (106) extending from the bottom, and retention rings (108) on the end opposite the hinge to impede further upward travel of the plate beyond the hinge. The plate assembly is coupled to the top of a frame so as to pivotally rotate into the frame up to a given distance. At least one upward force device, coupled to one or more of mounts of the frame, delivers force sufficient to overcome the plate weight. An input shaft assembly, coupled to at least one of the mounts, has at least one pulley-clutch assembly connected between the input shaft and the transmission arm to rotate the input shaft in only one direction in response to movement of the transmission arm, and an input shaft pulley coupled to the input shaft. The output shaft assembly, coupled to at least one of the mounts, has a flywheel coupled to the output shaft and two output shaft pulleys coupled to the output shaft. One of the output shaft pulleys is coupled to the input shaft pulley via at least one belt or intervening shaft assembly so that increase in gear ratio between the pulleys causes the output shaft to rotate at higher speed than the input shaft. A generator is coupled to one of the mounts and to the other output shaft pulley via at least one belt.    DESCRIPTION OF DRAWING(S) - The drawing shows the isometric top view of the plate assembly.    Plate (102)    Hinge (104)    Transmission arms (106)    Retention rings (108)