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 Breakwater Light lens was retained. As with its predecessor, no provision was made to house the fog signal's keepers, and they continued to live in the old keeper's dwelling in town. Funds for the light were appropriated in 1934 and first light came the following year. Full automation came late to this light. The old lens and its lantern were removed at an undetermined date, but keepers continued to operate the fog signal manually until 1975. The light continues in use, with a second but much shorter tower standing on the southern breakwater to mark the other side of the entrance. Port