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
U.S. Army Engineer Port Repair ship U.S. Army Engineer Port Repair ship The U.S. Army acquired ten ships during World War II as Engineer Port Repair Ships, also sometimes known as Port Rehabilitation ships, for use by the U.S. Army Corps of Engineers to clear war damaged harbors. The need was anticipated by 1942 for the post invasion recovery of ports in Europe and the Transportation Corps was assigned the responsibility to acquire and modify the ships that would be military crewed under the Corps of Engineers. The European Command had formed a request for port repair ships in 1942. Such a ship had never been