1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gennadij [26K]
2 years ago
13

A traffic flow has density 61 veh/km when the speed is 59 veh/hr. If a flow has a jam density of 122 veh/km, what is the maximum

flow in veh/hr (in whole number)? Use Greenshield Model.
Engineering
1 answer:
antoniya [11.8K]2 years ago
6 0

Since this traffic flow has a jam density of 122 veh/km, the maximum flow is equal to 3,599 veh/hr.

<u>Given the following data:</u>

  • Density = 61 veh/km.
  • Speed = 59 km/hr.
  • Jam density = 122 veh/km.

<h3>How to calculate the maximum flow.</h3>

According to Greenshield Model, maximum flow is given by this formula:

q_{max}=\frac{V_f \times K_i}{4}

<u>Where:</u>

  • V_f is the free flow speed.
  • K_i is the Jam density.

In order to calculate the free flow speed, we would use this formula:

V_f =2 V\\\\V_f =2\times 59\\\\V_f=118\;km/hr

Substituting the parameters into the model, we have:

q_{max}=\frac{118 \times 122}{4}\\\\q_{max}=\frac{14396}{4}

Max flow = 3,599 veh/hr.

Read more on traffic flow here: brainly.com/question/15236911

You might be interested in
Assume a steel pipe of inner radius r1= 20 mm and outer radius r2= 25 mm, which is exposed to natural convection at h = 50 W/m2.
Mekhanik [1.2K]

Answer:

98,614.82 W/m²

Explanation:

Q = 2\pi hL(\frac{T_2-T_1}{Ln\frac{r_2}{r_1}})

Where;

Q = the amount of heat loss from the pipe

h =  the heat transfer coefficient of the pipe = 50 W/m².K

T₁ = the ambient temperature of the pipe = 30⁰C

T₂  = the outside temperature of the pipe = 100⁰C

L= the length of pipe

r₁ = inner radius of the pipe = 20mm

r₂ = outer radius of the pipe = 25mm

To determine the amount of heat loss from the pipe per unit length

From the equation above

\frac{Q}{L} = 2\pi h(\frac{T_2-T_1}{Ln\frac{r_2}{r_1}})

\frac{Q}{L} = 2\pi* 50(\frac{100-30}{Ln\frac{25}{20}})

\frac{Q}{L} = 314.159(\frac{70}{0.223})

\frac{Q}{L} = 314.159(313.901) = 98,614.82 W/m²

3 0
3 years ago
A(n) _____ is an apparatus that changes alternating current (AC) to direct current (DC)
amid [387]

Answer:

rectifier

Explanation:

7 0
2 years ago
It is an important part of the differential maintenance which purpose is to make smoother the differential operation by lubricat
masha68 [24]

Answer:

lubrication

Explanation:

MARK ME BRAINLEIST

4 0
2 years ago
a metal rod 24mm diameter and 2m long is subjected to an axial pull of 40 kN. If the rod is 0.5mm, then find the stress-induced
ozzi

Answer:

i dont know but i will take the points tho hahah

Explanation:

8 0
2 years ago
Developed an automated program in any language which take 12 dependent variable and corresponding independent variables and show
otez555 [7]

Answer:

Explanation:

var generator = new Random(1);

// Now the nextGaussian() function returns a normal distribution of random numbers with the following parameters: a mean of zero and a standard deviation of one

var draw = function() {

var num = generator.nextGaussian();

var standardDeviation = 60;

var mean = 2003;

// Multiply by the standard deviation and add the mean.

var x = standardDeviation * num + mean;

noStroke();

fill(214, 159, 214, 10);

ellipse(x, 200, 16, 16); };

Hope this will be helpful

3 0
3 years ago
Other questions:
  • Cng containers need to be inspected
    7·1 answer
  • What's mutual inductance​
    8·1 answer
  • Write a single statement that prints outsideTemperature with 2 digits in the fraction
    8·1 answer
  • Que rol tiene el ecosistema el patos
    15·1 answer
  • Calculate the density of the FCC nickel lattice with an interstitial hydrogen in the centered position of the unit cell. You may
    10·1 answer
  • Which of the following can cause a flopping sound at the front of the engine
    14·1 answer
  • How can you drop two eggs the feweHow can you drop two eggs the fewest amount of times, without them breaking? ...st amount of t
    13·2 answers
  • For a nozzle-duct system shown in Fig Q3, the nozzle is designed to produce a Mach number of 2.8 with y = 1.4, The inlet conditi
    14·1 answer
  • What material are the rocker/valve cover gaskets made out of?
    5·1 answer
  • Which of these processes uses a die and a press to form parts?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!