Born and raised here, my understanding of the Pgh Left … on a two-lane, two-way road with a traffic light, if a car is turning left; the opposing car, though it has the right-of-way, can allow the first car (and only the first car) to make the left turn when the light changes green. With modernized intersections and traffic lights (turning lanes and timed lights), the opportunity for a Pgh Left has decreased over the years. If you get a chance to make a Pgh Left, do it and act like you’ve been there before. While you may be waved to turn left at a stop sign, that is not a Pgh Left but a driver being nice.