Traffic-light signalling and operation to a double red light. Tianjin in the People's Republic of China has two very special systems of traffic lights, in use since : One system is where there is a horizontal bar in a specific colour, with the colour changing and the bar shrinking. The shrinking bar indicates the time remaining in that colour. The colour itself is either red (stop), yellow or green (go). A blinking green one-third-full bar means "reduce speed now", and a blinking yellow full-bar indicates "proceed with caution". When lights of this system turn from green to red, the diminishing green bar will flash
Port Washington Light was first lit in 1889. This tower was unmanned and was maintained by the keepers of the older light. By 1903 it was clear that only one light was needed, and the old Port Washington Light was discontinued. Keeper Charles Lewis, Jr. retired in 1924 upon the electrification of the pierhead light, but apparently continued to live in the old house. In 1934, however, a new steel tower was installed on the breakwater, and this light required manual maintenance of its foghorns. The old light was remodeled to house the new set of keepers, including the removal of the tower