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Conversion of per-unit quantities to volts, ohms, or amperes requires a knowledge of the base that the per-unit quantities were referenced to. The per-unit system is used in power flow, short circuit evaluation, motor starting studies etc. The main idea of a per unit system is to absorb large differences in absolute values into base relationships.
Pound per hour is a mass flow unit based on the international avoirdupois pound, which is used in both the British imperial and, being a former colony of Britain, the United States customary systems of measurement. It is abbreviated as PPH, or more conventionally as lb/h.
Passenger car equivalent (PCE) or passenger car unit (PCU) is a metric used in transportation engineering to assess traffic-flow rate on a highway. [ 1 ] A passenger car equivalent is essentially the impact that a mode of transport has on traffic variables (such as headway, speed, density) compared to a single car.
For railways with very high passenger loads, the maximum possible route capacity is an important factor. A common unit for route capacity is people per hour (pph), which can for metro style systems can be as high as 80,000. [citation needed] Route capacity can also be expressed as number of vehicles per hour, such as 16 trains per hour (tph). [6]
Comparative passenger capacity per hour of various modes of transport. The corridor capacity in the passenger transport field refers to the maximum number of people which can be safely and comfortably transported per unit of time over a certain way with a defined width. The corridor capacity does not measure the number of vehicles which can be ...
TSFC or SFC for thrust engines (e.g. turbojets, turbofans, ramjets, rockets, etc.) is the mass of fuel needed to provide the net thrust for a given period e.g. lb/(h·lbf) (pounds of fuel per hour-pound of thrust) or g/(s·kN) (grams of fuel per second-kilonewton). Mass of fuel is used, rather than volume (gallons or litres) for the fuel ...
Pound per hour (symbol pph), mass flow unit (used in aviation to measure fuel flow, for instance) Part per hundred (percentage) People per hour, a measure of the rate of flow of people moving past a fixed point or through a system; Propylphenidate, an analogue of methylphenidate
The calculation for the K factor is given by the formula: DHV= K*AADT. in which DHV is the "Design Hourly Volume," the 30th highest hourly traffic volume (in both directions) in the year in which data was collected, by vehicles per hour. [4]