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2009 Edition Part 4 Figure 4D-10. Typical Position and Arrangements of Separate Signal Faces for Protected Only Mode Left Turns
Figure 4D-10. Typical Position and Arrangements of Separate Signal Faces for Protected Only Mode Left Turns
This figure shows the typical position and arrangements of separate signal faces for protected 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 three 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 is shown above the left lane as a vertical arrangement of left-turn red arrow, left-turn yellow arrow, and left-turn green arrow signal indications. The middle signal 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 two arrangements. The left arrangement shows a vertical arrangement of three signal indications – left-turn red arrow, left-turn yellow arrow, and left-turn green arrow. The right arrangement shows the same three signal indications arranged horizontally.
