subject
Engineering, 23.01.2020 19:31 mistytownsend1952

The flow and density of a highway were observed to follow the triangular model as given below:
q = {50k, k< _kc 10(kj - k), k > _kc
where kj is the jam density kc and is the critical density at which the traffic reaches maximum flow (the units of flow, density, and speed in the above equationare veh/hour, veh/mile and mile/hour). a traffic engineer took a measurement of the spacing when traffic is at a standstill and found it is 17.6 ft:
a. what is the critical density at which the flow reaches its maximum?
b. what is the maximum flow that can be reached on this highway?

ansver
Answers: 3

Another question on Engineering

question
Engineering, 04.07.2019 18:10
Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
Answers: 3
question
Engineering, 04.07.2019 18:10
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
question
Engineering, 04.07.2019 18:10
Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.
Answers: 2
question
Engineering, 04.07.2019 18:10
Items are similar to the free issue items, but their access is limited. (clo5) a)-bin stock items free issue b)-bin stock controlled issue c)-critical or insurance spares d)-rebuildable spares e)-consumables
Answers: 1
You know the right answer?
The flow and density of a highway were observed to follow the triangular model as given below:
Questions
question
Mathematics, 27.09.2019 16:30
question
Mathematics, 27.09.2019 16:30
Questions on the website: 13722367