Question:
Why not use five points lights with the green arrow? It would allow for much greater flexibility and improve traffic flow. That way drivers wouldn't be stuck waiting at a red turn lights when there is no oncoming traffic. I see it happen all the time where I live. Is it a cost issue?
Answers:
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The decision to use left turn only greens actually rests in 2 places. First, traffic at the worst time of day determines the turn issue. If it is impossible on a steady green to turn during that commute, the left turn only signal is born. The other manner is accidents and the legislative connection. A person gets killed at a turn and everyone automatically blames the light for not reducing the risk of turning (when it was actually the turning driver who made the misjudgement about distance). Well, state DOTs are especially sensitive to folks in the legislature who petition for left turn only signals (they do, after all, control the DOT budget allocation). So if you are sitting at a left turn only light, and you know that traffic is not the issue, you can be certain it was some complaining elected official who prompted the decision.should petrol be more expensive?
By the way, cost is a huge issue to upgrading these lights, such as using the traffic circumstances at certain parts of the day or right then -- we're talking about $200 K for each individualized light.
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Back in the 50's and 60's, there were far fewer cars running around, so there were no left turn lights. Turning was easy and you usually didn't have to wait for more than one or two cars to go by.i am a bus driver .and i am fed up with being a bus driver?
NOW, at certain times of the day, the only time you can complete a left turn is when the light for oncoming traffic changes, and only one or two cars can make that turn. THATS why they put in the left turn lights, so the long line waiting could get their turn done.
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The turn lights are supposed to be activated by the sensor in the pavement, but a lot of them aren't.
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In my city, they are experimenting with left turn lights that you can also turn when it is safe, not ONLY when there is a green arrow.
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