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:
“twenty centuries of stony sleep
Were vexed to nightmare by a rocking cradle,
And what rough beast, its hour come round at last,
Slouches towards Bethlehem to be born?”
—William Butler Yeats (1865–1939)
“When you know what men are capable of you marvel neither at their sublimity nor their baseness. There are no limits in either direction apparently.”
—Henry Miller (1891–1980)