Q3. A highway has an average spacing 1332ft and average headway of 2.3 sec in the peak when it was operating at capacity. FFS on the highway is 70mph. Find out critical speed, critical density, capacity of the road, the equation between density and speed, and jam density.

Q3. A highway has an average spacing 1332ft and average headway of 2.3 sec in the peak when it was operating at capacity. FFS on the highway is 70mph. Find out critical speed, critical density, capacity of the road, the equation between density and speed, and jam density.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter7: Intersection Design

Section: Chapter Questions

Problem 19P

See similar textbooks

Related questions

Q: Vuestion- Estimole the Lowhen EC Voluu of a Satumed Extmet of say is ta toth 1o lUm ho /om at 25% De...

A: Given data- Electrical conductivity value-EC=10 μmho/cm @25% reduction in yieldEC of irrigation wate...

Q: A car is standing 200 m behind a bus, which is also at rest. The two start moving at the same instan...

A: given Initial conditions - both bus and car at rest. Acceleration of car 4m/sec2 Acceleration of bu...

Q: Determine the reactions at the support. 3 kN -2 m 2 kN 1.5 m 2 kN 1.5 m A Ax=4kN, Ay=4.5kN, By=4.5kN...

Q: 9. The rigid bar ABC is supported by a pin at A L=4 ft and a steel rod at B. A = 0.5 in.2 E= 29 x106...

Q: A thin walled cylindrical pressure vessel having a radius of 0.5m and wall thickness of 25mm is subj...

Q: A car travelling 60kph is followed by another travelling 80kph. The lead car suddenly brakes to a st...

Q: Draw the FBD and determine the reactions at support A (Show in your solution, Given the following da...

A: A loaded beam is given and it has been asked to determine supported reactions. Please refer step 2 f...

Q: Find degree of static indeterminacy

Q: normal component of the acceleration of h is not to exceed 0.8 m/s².

A: given data- velocity (V) = 72kmph = 72(5/18) =20m/s acceleration(a) = 0.8m/s

Q: cylindrical pressure vessel is fabricated from steel plates

A: Given: Diameter = 601 mm Thickness = 20 mm Stress in steel = 140 MPa To determine: The thickness req...

Q: 4 kN ろm ろm

Q: How many numbers of conflict are present in a 4-legged intersection?

A: Given - How many numbers of conflict are present in a 4-legged intersection? a.12 b.8 c....

Q: Problem 4. Shear at point C 20 kN 20 kN D B C -3 m -3 m- -3 m- O+20KN-m -20KN-m O +25KN-m -25kN m

Q: NOTE: PLEASE ANSWER ALL OF THE QUESTIONS AND PROVIDE STEP BY STEP SOLUTION

Q: 250-lb bucket is suspended from a cable on the wooden frame. Determine sultant internal loadings on ...

A: To find the internal loadings at point E -

Q: look for and show complete solution: a. Reactions b. Shear and Moment Diagram c. Maximum Moment d....

A: For the beam shown below, the reactions, SFD, BMD, maximum moment and equations have to be determine...

Q: Consider a cylinder of specific gravity SG < 1 floating vertically in water (SG = 1), as in the figu...

Q: Example 15.1 Design members AB ACaré jart A of a rocf trss as shown in Fig Ex. 15.1, or the folowing...

Q: Ssify the following 5 solls by the classincation system. Sieve Analysis. % Finer No. 40 Liquid Limit...

Q: A concrete wall footing with a width of 0.9m and a depth of 0.6m supports a centrally placed 0.6-m-t...

Q: -) WATER IS FLOWING IN A TRAPE010 CHANNEL WITH A SIDE SLOPES EQUAL TO 2H :sV AND A 13 ft BOTTOM WIDT...

A: Trapezoidal Channel is an open channel with a trapezoidal cross section where both sides have the sa...

Q: INSTRUCTIONS: COPY THE GIVEN TRUSS AND SOLVE FÖR THE MEMBER 12' FORCES: AB, AC, BC, BD, BE, BF, CF, ...

Q: of 2 Determine the average shear stress in the 20-mm diameter pin at A. |30 kN 5 3 B -2 m 4 m

Q: D- Analyzing a system of forces acting on a concrete concrete slab shown in the picture is subject t...

Q: Draw the FBD. Then, determine the reactions at A and B. 650 N 500 N 30° 300 N 1500 N m 60° B 3 m -5 ...

A: Given data in question Point load Concentrated moment Angle Span member dimensions To find out ...

Q: Question 5: (Consider yielding & rupture limit states only) An L5 x 5 x ½ tension member of A242 ste...

A: Solution-Determining the nomnal strength in yelding is given below,Pn=FyAgPn is the nominal strengt...

Q: B fm fm Draw the influence line for the beam Use Müller-Breslau's Method 1 Reaction at A 2 Reaction ...

Q: A column carrying an axial load of 30C0 kN has a base plate 0.75 m X 1 m and transmits its loads to ...

Q: * Hardness of Calcite is more than hardness of Diamond O Gypsum O Calcite O

A: We will solve this question in step no. 2

Q: Problem 9. Calculate the maximum moment 3 k/ft 2 k/ft A B - 20 ft- - 30 ft-

A: Given, Beam Loading diagram

Q: On a sketch of each of the plane trusses shown, determine and sketch all reaction components, all ze...

A: As per company's guidelines we can only answer first three questions. Kindly post other questions a...

Q: Fundamental Problem 4.41 Part A Determine the resultant force and specify where it acts on the beam ...

A: To Determine Magnitude of the resultant Force, (FR) Distance between point A and line of action of F...

Q: 10. The rigid bar AB, attached to aluminum and Steel steel rods, Aluminum L=3 m A = 300 mm2 E= 70 GP...

Q: Considering the two scenarios below. Calculate the man's height if the center of gravity of the man'...

Q: The average normal stresses developed in section a-a of the turnbuckle, and the bolt shanks at B and...

Q: Determine the magnitude of the resultant force in kilonewton. F1 = 1,212 N F2 = 1,240 N F3 = 792 N 0...

Q: 150 kip 100 kip A B 200 kip 300 kip 300 kip 300 kip 300 kip -6 ft--6 ft-6 ft→-6 ft--6 ft--6 ft-|

A: Using equilibrium equations calculate the reaction forces at C and D. Then using the definition of b...

Q: Consider a simple rectangular beam (bxh) reinforced with steel reinforcement of A.. Assume b = 8 in....

Q: AD, etermine, for an 8-ft length perpendicular to the paper, the amount and location the horizontal ...

Q: 5. The piece of P wood, 100 mm by 100 mm in cross section, contains a glued joint inclined at the an...

A: We have to determine the value of largest allowable axial force P as per the given data in the quest...

Q: Draw the FBD. Then, determine the reactions at A and B. 650 N 500 N 30° 300 N 1500 N m A 60° B -3 m ...

A: Draw the FBD. Then, determine the reactions at A and B.

Q: A hand-carved sample of clay having a mass of 2.62 kN is removed from a 0.5 meter- diameter hole. Th...

Q: 5 Prepare a set of profile leveling notes for the survey in Figure 2-34. In addition to comput- ing ...

Q: .5 Prepare a set of profile leveling notes for the survey in Figure 2-34. In addition to comput- ing...

Q: Determine the maximum weight W of the block that can be suspended in the position shown if each chor...

Q: Problem set 2 A reinforced concrete beam section is "b" wide and "h" deep. It is to be reinforced wi...

A: Since length L is not given We can assume 6 m

Q: Determine the total change in length of the 25-mm-diameter rod when it is acted on by three forces s...

A: Determine the total change in length of the 25-mm-diameter rod

Q: A steel section ISHB 250@54.7 Kg/m of steel grade E250 is used a compression member of effective hei...

Q: TP 2 Known Elevation is 402.78 4.30 2.01 4.72 +75· - 0s + - 0G + 00 2 Rod

Q: 1. Calculate the minimum wall thickness for a cylindrical vessel. The diameter of the vessel is 8.5 ...

Concept explainers

Capacity and Level of Service at Intersections

The term capacity is associated with transportation engineering. Capacity helps to understand how many pedestrians or vehicles can be handled by a transport facility. Level of service is also a term associated with transportation engineering. The level of service indicates the performance of the transport facility.

Question

Q3. A highway has an average spacing 1332ft and average headway of 2.3 sec in the peak when it was
operating at capacity. FFS on the highway is 70mph. Find out critical speed, critical density, capacity of
the road, the equation between density and speed, and jam density.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Capacity and level of service at intersections

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

1. The rate flow at a point in the highway is 1200 vehicles/hour. Find the space mean speed in mph if the density of traffic is 25 vehicles per mile 2. Assume you are observing traffic in a single lane of McArthur Highway at a specific location. You measure the average headway and average spacing of the vehicles as 3.2sec. and 50 m. respectively. Determine the traffic speed in kilometer/hour
In a 500 m section of highway, there are 10 vehicles observed. The time headway is 4 sec. Determine the space mean speed of the vehicles in kph.
If 5473 vehicles passes a certain lane of road with an average speed of 60kph. determine the appropriate spacing of the vehicles.
The average spacing of the cars moving along the same lane of an expressway is 54.3 m center to center. Determine the volume of traffic in veh/hr if the average velocity of the cars is 51 kph.
Determine i) capacity, ii) jam density, iii) speed and iv) density at capacity of a traffic stream if the speed density relationship follows relation v = 17.2 ln(228/k), if v is space mean speed in km/hr and k is the density at veh/km.
2. In a 500 m section of highway, there are 10 vehicles observed. The timeheadway is 4 sec. Determine the space mean speed of the vehicles in kph. (5pts)
What should be the maximum speed (mph) of a car traveling on a leveled (zero grade) road surface if the available stopping sight distance is 400 ft? Assume 1.5 s of reaction time and braking friction coefficient of 0.35.
A section of highway has a speed–flow relationship of the form q = au2 + bu, where q is the traffic flow in veh/h, u is the space-mean speed of traffic in mi/h, and a and b are unknown parameters. It is known that at capacity (which is 3100 veh/h) the spacemean speed of traffic is 28 mi/h. Determine the speed when the flow is 1500 veh/h and the free-flow speed.
Andeng highway can accommodate speed of 80 kph under free-flowing conditions. On average, front bumper-to-bumper spacing of 1.20m is occuring on the highway such that the flow stops completely. Determine the flow of traffic on Andeng Highway if the average speed of the vehicles is 36 kph. final answer is 16,500
A section of highway having a length 60 m. The observed data are 6 vehicles cross over it in a period of 148 sec., for the following duration: 2.4, 2.8, 3.0, 2.1, 2.2, and 3.5 sec. Estimate the values of the flow rate, density, space-mean speed, time-mean speed, average gap. and average clearance. If the length of vehicles are 6, 5.4, 6.6. 4.8, 7.5, and 6 m respectively?
Car A experienced engine failure the moment it enters a 2-km highway that has a constant grade of 4 deg throughout its span (4 deg. inclination). Point C is the location where car A experienced failure. When car A is towed by the truck it gains an acceleration of 3 m/s^2, at the same instance, car B is passing the same highway with a constant velocity of 40 km/hr and is 100m away from point C (measured along the pavement). 1. At what time will car A overtake car B? answer in unit of seconds. 2. How far from point C (along the pavement) will the two cars meet? answer in unit of meters 3. What is the velocity of car A at the instance it overtakes car B? answer in unit of km/hr
A freeway traffic stream was observed to have a density of 22.0 veh/mi/ln when the mean speed was 55.0 mi/h. On another occasion at the same location, the jam density was found to be 132 veh/mi/ln. Assume Greenshields' model of traffic flow applies. The optimum speed (in mi/h) is: a) 22.0 b) 33.0 c) 55.0 d) 66.0 e) None of he above