This is correct, but I'm not sure the authorities take that into consideration. In my case, it's the yellow and red that look identical, but that doesn't stop them from making single flashing red lights and single flashing yellow lights. Makes life exciting sometimes.
Also lights with more than three bulbs, some indicating left or right turns, of which will take on two or more colours themselves. Some lights have a bulb above red for cyclists and transit. Some lights called beacons are a single bulb that take on several colours.
Why can't the US simply require auto makers to use a damn yellow light for turn signals? This is common in almost every country. Yet in the US (and Canada, btw), we get the stupid Red color for break and turn signals.
The versions that I hate are where there are always flashing yellow lights at those whether there is a pedestrian present or not. It is confusing and teaches people to ignore the flashing light as it is meaningless. I prefer the kind where a pedestrian presses a button and the lights flash to tell the cars to stop.
Flashing yellow left arrows remove the ambiguity that creates 'yellow trap' and also reduce cycle waste by permitting left turns when opposing traffic has extended green.
If it’s on a British road, said self-driving car will see normal yellow indicators, since red is not a permissible colour. As mentioned in the article.
In the UK they are different colours and patterns so blind and partially sighted folks can tell what they're near.
They're red near pedestrian controlled lights and yellow near uncontrolled lights or crossings with no lights. There's different patterns of the raised dots/lines for some uses - like steps or platform edges.
None of this had I noticed until someone pointed out there was a method at work. :)
I hate red turn signals because I often confuse it with brake lights if I can only see half a vehicle. This leads to premature and sudden braking for cars that follow. I think it should be required that turn signals be amber. I only see it on American cars. I kid you not, I complain about this everyday in the US while driving.
What's funny in certain countries (right now for me the GCC) is that people believe if you flash with your brights at the right speed and frequency it will automatically set them to green, or shorten the interval on the opposing traffic direction so it goes green for you sooner.
Do other people believe this? I have watched people try for over 60 seconds or more until giving up, and I find this hilarious even today.
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