Passengers per hour per direction or passengers per hour in peak direction (PPHPD or p/h/d) is a measure of the capacity of a rapid transit or public transport system.
Read more about Passengers Per Hour Per Direction: Directional Flow
Famous quotes containing the words hour and/or direction:
“Well, the world has a million writers. One would think, then, that good thought would be as familiar as air and water, and the gifts of each new hour would exclude the last. Yet we can count all our good books; nay, I remember any beautiful verse for twenty years.”
—Ralph Waldo Emerson (1803–1882)
“The learned and the studious of thought have no monopoly of wisdom. Their violence of direction in some degree disqualifies them to think truly.”
—Ralph Waldo Emerson (1803–1882)