|
|
2009 Edition Part 4 Figure 4D-12. Typical Position and Arrangements of Separate Signal Faces with Flashing Yellow for Protected/Permissive Mode and Protected Only Mode Left Turns
Figure 4D-12. Typical Position and Arrangements of Separate Signal Faces with Flashing Yellow for Protected/Permissive Mode and Protected Only Mode Left Turns
This figure shows the typical position and arrangements of separate signal faces with flashing yellow for protected/permissive mode and 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 a left-turn red arrow, left-turn steady yellow arrow, left-turn flashing yellow arrow, and left-turn green arrow signal indications. A note states the left-turn flashing yellow arrow "shall not be displayed when operating in the protected only mode." 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 four signal indications – left-turn red arrow, left-turn steady yellow arrow, left-turn flashing yellow arrow, and left-turn green arrow. A note states the left-turn flashing yellow arrow "shall not be displayed when operating in the protected only mode." The right arrangement shows the same four signal indications arranged horizontally.
