Abstract: A system, method and device for waste measurement for garbage truck fleets operated by waste pickup service are provided. The waste measurement device comprises one or more visible light cameras; one or more volume sensors; and a controller. The waste measurement device is deployed in front of a hopper of the garbage truck and the device is configured to measure the waste volume in the hopper using the volume sensors. The method calculates the waste volume emptied from the waste container by at least subtracting the measurement of the volume in the hopper before loading from the measurement of the volume after loading. The system manages the waste pickup services having garbage truck fleet with the waste measurement devices. The system optimizes and monitors the system operation conditioned upon the measurements provided from the waste measuring devices.