ok, i got that part. but when phf is used to adjust flow rate (as in synchro), why bother with the calc (1 hr. volume divided by phf)? why not simply take the highest 15 min interval X 4 to get the adjusted flow rate?
whil looking at the formula for calculating peak hour factor, it seems as though the answer is the same as the highest 15 minute period time 4. if this is correct, why go through the bother of the calcs? if i am misinformed, what am i doing wrong?
wouldn't recommend jumpering due to liability concerns as well as being vey difficult for intersections with complex phasing.
we test once a year using an athens technical specialties tester. they recently introduced a window based version. check out their website.
