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2009 Edition Part 4 Figure 4D-6. Typical Position and Arrangements of Shared Signal Faces for Permissive Only Mode Left Turns
Figure 4D-6. Typical Position and Arrangements of Shared Signal Faces for Permissive Only Mode Left Turns
This figure shows the typical position and arrangements of shared signal faces for permissive only mode left turns. A legend shows a black arrow indicating the direction of travel on the roadway.
The figure shows two types of examples. The first example is labeled "A – Typical Position." It shows two signals aligned horizontally on a horizontal pole over a vertical segment of three lanes of a roadway. A white left-turn arrow is shown marked in the left lane, and upward-pointing black arrows in the center and right lanes denote the direction of travel as straight through. The left signal (noted as a shared signal face) is shown above the center lane as a vertical arrangement of circular red, circular yellow, and circular green signal indications. The right signal is shown above the right lane as a vertical arrangement of circular red, circular yellow, and circular green signal indications.
The second type of example is labeled "B – Typical Arrangements." It shows a vertical arrangement of three signal indications - circular red, circular yellow, and circular green – to the left of the same three signal indications arranged horizontally.
