The invention relates to a hybrid drive unit, in which for the most optimum possible synergetic use of the combustion engine drive and electromotive drive, a multi-speed clutch- and gear assembly is provided, in which both the combustion engine drive power and also the electromotive drive power is introduced into an input member of the clutch- and gear assembly. The movable platform apparatus disposed under the floor section of the transit vehicle for interface with the low platform is deployed outwardly toward the outer surface of the transit vehicle for interface with the high platform. The embodiment updates the address table to include the source address of each ingress packet of each network port and associate the source address with that network port. Each of the pixel circuits includes a light emitting device, a storage capacitor, and a drive circuit connected to the light emitting device and the storage capacitor.