Dallas PPLT Displays (Horizontal Head)

Dallas PPLT Displays (Horizontal Head) - Dual Lead Left-turns

Another advantage of PPLT "Dallas Phasing" is that the circular red indication is never shown with the left-turn arrows. Human factors surveys have found that the public is confused by a solid red and a green arrow because these displays appear to be contradictory even though they are allowed in the MUTCD.

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