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
SS Avila Star either wore or carried a lifejacket plus a red marker light to attach to it. On the evening of 5 July the started following "Avila". At 00:36 on 6 July by Berlin Time, east of São Miguel in the Azores, the submarine hit "Avila"s starboard side with two G7e torpedoes, one of which detonated in her boiler room. The order was given to abandon ship. The ship's engines and main generator were disabled, but her emergency dynamo was started which restored electric light. "Avila Star" carried eight lifeboats: the odd-numbered ones on her starboard side and the even-numbered ones on