![]() However, the signal still provides a green left turn arrow when left-turning traffic is heavy. By not having the red arrow, motorists do not have to wait to turn left when there is no opposing traffic, a situation that often occurs during periods of low traffic volumes. This type of left turn phasing is designed to minimize delay by eliminating the need for the red arrow and allowing vehicles to turn on the green ball after opposing traffic has cleared. During the display of the solid green ball, left turns can be made when there are adequate gaps in opposing traffic to complete the left turn safely. After the amber arrow is terminated, drivers are facing a solid green ball signal. Under this arrangement, left turn signals provide the usual green arrow which is followed by the amber arrow. These arrows are helpful, but when there is no opposing traffic they can cause unnecessary delays. On the red arrow, left turns are not permitted. The amber arrow warns drivers that the left turn signal is ending. On the green arrow, drivers are given the right-of-way to complete left turns free of any other traffic conflicts.
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