Engineering, 12.02.2020 02:25 cthompson1107

An observer has determined that the time headways between successive vehicles on a section of highway are exponentially distributed and that 60% of the headways between vehicles are 15 seconds or greater. If the observed decide to count traffic in 30-second time intervals, estimate the following:

a. The probability of counting exactly 4 vehicles in an interval.
b. The probability of counting 3 or more vehicles in an interval.
c. The probability of observing exactly 10 vehicles in two consecutive intervals.
d. The expected number of vehicles to experience time headway between 10?second and 20-second.
e. The average time headway of this traffic stream

Answers: 2

Show answers

Other questions on the subject: Engineering

Engineering, 03.07.2019 14:10, makaylashrout77

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

Answers: 2

continue

Engineering, 03.07.2019 23:20, abbz13

Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct

Answers: 3

continue

Engineering, 04.07.2019 18:10, niyawilliams23

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

Answers: 1

continue

Engineering, 04.07.2019 18:10, colin774

The higher the astm grain size number, the finer the gran is. a)-true b)-false

Answers: 2

continue

You know the right answer?

An observer has determined that the time headways between successive vehicles on a section of highwa...