Left turn signal
Left turn signal
(OP)
I'm trying to find out the requirement for a left turn lane signal. We presently have two types. Both are shared between the left turn lane and the adjacent through lane. One is a 5 head signal and the other is a 4 head.
R R
<Y Y Y
<G G G
<G
Is the signal without the yellow turn arrow compliant with the MUTCD?
R R
<Y Y Y
<G G G
<G
Is the signal without the yellow turn arrow compliant with the MUTCD?





RE: Left turn signal
The "doghouse" five section head is preferred by people with a certain (fairly rare, IIRC) type of color blindness, since it makes it easier to tell the difference between yellow and green arrows by location.
"...students of traffic are beginning to realize the false economy of mechanically controlled traffic, and hand work by trained officers will again prevail." - Wm. Phelps Eno, ca. 1928
"I'm searching for the questions, so my answers will make sense." - Stephen Brust
RE: Left turn signal
RE: Left turn signal
RE: Left turn signal
Is the second layout used for lead/lag left greens, while the first ("doghouse") used for 8 phase signals?
RE: Left turn signal