What's the point of traffic light to turn from red to yellow to green? Green to yellow to red is understandable but what's with red to yellow to green? I saw this during a visit to Hong Kong. You prepare to stop but strange with prepare to go.
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ANSWERS: 8
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Are you sure that amber and red weren't on at the same time before green? That's the way it works in the UK and Hong Kong was a British Colony. The object is to help with traffic flow and to cut down the time between the light turning to green and the traffic starting to move.
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It kind of make sense in high traffic and high pedestrian areas. Look before you go so you don't run anyone down.
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its amber Brian you are right on that one but its still used 4 high trafic volumes
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It doesn't work that way in the US, but it sure sounds like a good idea - reduce that delay of people noticing the green light and then going - they can get ready to go, look around, and then actually go on green instead of sitting there.
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It saves your butt from the other guy whos running the red light.
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I have noticed the same red light procedure in a small town in the United States. It really has no purpose. I can only assume the traffic light was manufactured in a foreign country. You know, like everything today is made in China?
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Meh, makes sense to me.
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To people from England, straight from red to green seems odd. And it does have a purpose. When most cars have manual transmission, it allows the driver to slip the car into first ready to leave when green lights up. I can't speak for Hong Kong (a former British territory) but in England the sequence is red, red and amber, green, amber, and back to red. The red-and-amber means do not go until green (usually ignored)
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