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The K Factor also helps calculate the peak-to-daily ratio of traffic. K30 helps maintain a healthy volume to capacity ratio. [3] K50 and K100 will sometimes be seen. K50 and K100 will not use the 30th highest hourly traffic volumes but the 50th or 100th highest hourly traffic volume when calculating the K factor.
In telecommunications, busy-hour call attempts (BHCA) is a teletraffic engineering measurement used to evaluate and plan capacity for telephone networks. [1] BHCA is the number of telephone calls attempted at the sliding 60-minute period during which occurs the maximum total traffic load in a given 24-hour period (BHCA), and the higher the BHCA, the higher the stress on the network processors.
Passengers per hour per direction (p/h/d), [1] passengers per hour in peak direction [2] (pphpd) or corridor capacity [3] [4] is a measure of the route capacity of a rapid transit or public transport system.
Morning rush hour on the New York City Subway platform at Jackson Heights–Roosevelt Avenue Afternoon rush hour traffic on Interstate 95 in Miami. A rush hour (American English, British English) or peak hour (Australian English, Indian English) is a part of the day during which traffic congestion on roads and crowding on public transport is at its highest.
For this reason, tables or charts are used to determine the normal value for a particular individual. More recently, medical calculators have been developed to calculate predicted values for peak expiratory flow. There are a number of non-equivalent scales used in the interpretation of peak expiratory flow. [4]
In reality, 1.5 persons per car and 2 seconds headway can be assumed, giving 1800 cars or 2700 passengers per lane and hour. For comparison, the Marin County, California (near San Francisco) states that peak flow on the three-lane Highway 101 is about 7,200 vehicles per hour. [13] This is about the same number of passengers per lane.
A human's vital capacity depends on age, sex, height, mass, and possibly ethnicity. [4] However, the dependence on ethnicity is poorly understood or defined, as it was first established by studying black slaves in the 19th century [ 5 ] and may be the result of conflation with environmental factors.
In absence of such, estimates of residual volume have been prepared as a proportion of body mass for infants (18.1 ml/kg), [12] or as a proportion of vital capacity (0.24 for men and 0.28 for women) [13] or in relation to height and age ((0.0275* Age [Years]+0.0189*Height [cm]−2.6139) litres for normal-mass individuals and (0.0277*Age [Years ...