As if that wasn't bad enough, we have stupid traffic lights.
The diagram below shows the sequence of 6 transitions that we have in a set of lights close to where I live. It is as you come to a T-junction (from the bottom of the letter if that makes sense).
The light spends most of its time in position 1 (red for us).
Then it goes to position 2 for a while, with a filter for cars turning left.
Then it goes through positions 3 and 4 on the way to 5: a full green.
Then it goes to position 6 on the way back to position 1.
Here's my point: positions 3 and 4 have no purpose whatsoever. They just stop the cars filtering left before allowing them to go again! The lights could go directly from 2 to 5. I'm sure in most counties they would do exactly that.
How is it possible that the people who designed and installed those light did not know that?
