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:
“It is the hour when stink and sweat
Subside to let the flesh forget
Affinity for brick and lathe,
The cold necessity to bathe
And certain things one would forget.”
—Allen Tate (1899–1979)
“From the way the grass bends, one can know the direction of the wind.”
—Chinese proverb.