Peak Hour Factor Calculations
						PHF = (V1+V2+V3+V4) / (4 x Max(V1, V2, V3, V4))
15-Minute Period Beginning		Constant Court		Surge Street
		Count	PHF	Count	PHF
4:00	PM	100		50
4:15	PM	110	0.95	80
4:30	PM	115		200	0.70
4:45	PM	100		150		Much Different Peak Hour Factor!
5:00	PM	110		120
5:15	PM	100		90
5:30	PM	100		60
5:45	PM	100		50
		835		800		Count for the 2-Hour PM Peak Periods are the Same!
USED FOR WHAT?
PHF's are used in Capacity Analysis and Signal Timing Analysis
(How many lanes do I need?  What should the relative green times be?)
Jeffrey Buckholz, P.E. - University of North Florida - TTE 4004