Abstract: A supplemental system of stop lights for use in conjunction with a primary stop light system. Solar powered supplemental stop light units are mechanically attached nearby the stop light units of the primary system. Should the primary system fail, the supplemental stop lights become active to re-establish control of the traffic flow and substitute for the disabled primary stop light system. The supplemental stop light system uses at least two visual displays: a graphics display and an alphanumeric verbal display. In an alternative use in conjunction with emergency vehicle traffic, an alphanumeric numeric display can be advantageously employed.

Abstract: A refuse bag composed of flexible plastic sheet material folded into a flat rectangular condition and mounted in a carrier to form a disposable cartridge for use in a manually operable refuse tool. The carrier has a flat bottom wall, upstanding sidewalls, and bag retainers overlying the bottom wall and defining an open front side for withdrawal of the bag, which has a closed end secured to the carrier. A v-notch in the rear side of the carrier leading to a restricted central opening forms a clip for closing the bag around refuse that has been picked up. Three embodiments of the carrier are shown, in cardboard, stiff plastic sheet material, and molded transparent plastic.