The mean flow speed at a portion of the highway is 62.8 mph and a jam density of 110 vehicle/mile. a) Compute the density when the flow is maximum b) Compute the maximum capacity in vehicle/hour c) Compute the speed of maximum flow

The mean flow speed at a portion of the highway is 62.8 mph and a jam density of 110 vehicle/mile. a) Compute the density when the flow is maximum b) Compute the maximum capacity in vehicle/hour c) Compute the speed of maximum flow

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter6: Fundamental Principles Of Traffic Flow

Section: Chapter Questions

Problem 9P

See similar textbooks

Related questions

Q: Evaluate: 1-cos(x) lim 3x?

A: Evaluating the above terms, we get :

Q: Consider the tank shown. Which of the following pressure relations is correct? Air Air 2 ft 3ft Air ...

Q: Example 3 Select the best hot-rolled W-section bracing for buckling about its strong buckling about ...

A: [5:14 pm, 22/02/2022] ??????: Factored load on the column (LRFD) = 1.2PDL + 1.6PLL = (1.2*600+1.6*12...

Q: A 50 m tape of standard length has a weight of 0.05 kg/m, with a cross b) sectional area of 0.04 cm2...

Q: 1. A rectangular reinforced concrete beam with width of 300mm and effective depth of 600mm is subjec...

A: Given data B = 300mm d' = 60mm Effective depth (d) = 600mm Overall depth (D) = 600 + 60 = 660mm Area...

Q: The mass specific gravity of a fully saturated specimen of clay having a water content of 30.5% is 1...

Q: What will be the efficient minimum spacing 'S' between the channels of laced column formed by 2 ISMC...

A: Given arrangement,

Q: Determine normal force exerted on block by the surface at point A and B

Q: PROBLEM 5: Determine the moment of inertia with respect to the centroidal X and Y axes. Yo 1" - Xo10...

A: Given I - section shape with dimensions and thickness. To Determine Moment of Inertia with respect...

Q: An open tank in the shape of a frustum of a cone is bound by two hoops, one at the top and the other...

A: INTRODUCTION: HOOP TENSION : it is the stress acting over the circumferential part of the tank due t...

Q: A and a cable DB. Find: Draw a free body diagram to determine the components of reactions. 1.5 m 1.5...

A: Free Body Diagram

Q: The rocks formed from molten magma, are called A. sedimentary rocks B. igneous rocks C. metamorphic ...

Q: Find the static head of where

Q: nical properties of civil e action works. Answer be a concrete mix for the fc 28-day compressive str...

Q: As shown in the figure below, determine the internal loadings at points A,B and. Consider the unifor...

A: To determine the internal loading at points A and B of the given structure. Given, Parameter FN = ...

Q: 1. When the force of 3 mN is applied to the plate the line AB in the liquid remains straight and has...

Q: 80 D E F kN

Q: The copper pipe (G - 45GPA) has an outer diameter of 50mm and an inner diameter of 30mm, It is fxed ...

A: We have to determine the value of rotation of the free end with respect to the fixed end of the give...

Q: The rigid beam is supported by a pin support at A and steel wires BD and CE (E-200GPA). Solve the ra...

A: The load =PThe load in wire BD =P1The load in wire CE =P2The length of beam =7mThe wire BD is 3m fro...

Q: Identify at least 2 concrete manifestation of the role that science and Technology play in nation bu...

A: science and technology helping in building the nation in various ways 1)improving the poverty 2)imp...

Q: . What is the effective vertical stress at the mid height of the clay layer after lowering the water...

A: Hi! Thank you for the question As per the honour code, We’ll answer one question since the exact one...

Q: The steel pipe (G - 75GPA) has an outer diameter of 50mm and an inner diameter of 30mm, It is fixed ...

A: Given:- The modulus of rigidity of the steel pipe = G = 75 GPa The outer diameter of the pipe = 50 ...

Q: P= | 500 Ibs T= 250 Ibs 7 feet 20 Length = 21 feet 35 %3D

Q: 3. An ASTM A36 structural steel beam 5.00 m long is placed between two rigid supports. When the temp...

Q: 4. A mass m is on a frictionless incline that makes an angle 0 with the horizontal. Let m = 25.0 kg ...

A: solution: m=25kg theta = 300

Q: The pavement of the road on a level ground is to be laid on a base course of 500 mm thick, consistin...

Q: What is the pressure difference between the air pipe and the water pipe ? WATER, SH0 = 9800 N/m3 30C...

A: Please refer the attached image for complete solution. THANK YOU !

Q: Q1) Obtain the deflection (VD) and the rotation (PD) at point D by using "Cantilever Beam Method". P...

A: The given figure is shown below:

Q: Two steel plate tension members have been connected using 0.72” diameter bolts arranged in an equall...

Q: A thin cylinder 500 mm in diameter is made by providing a longitudinal lap joint with 8 mm shop fill...

A: Given arrangement, for a thin cylinder Diameter=500 mm longitudinal lap joint with 8 mm shop fille...

Q: 5. Determine the nominal uniform load, w, (including beam weight) which will cause bending moment eq...

A: The loads on a beam can be point loads, disseminated stacks, or changing burdens. There can likewise...

Q: A tank is filled with glycerin (2 ft depth) and a gasoline (3 ft depth) with top of it. Determine th...

Q: The water table is at a depth of 2.5 m below the base of a square footing used to support a column, ...

A: Please refer the attached image for complete solution. THANK YOU !

Q: Solve the density of li

Q: A compacted earth fill is constructed on a soft, saturated clay (figure below). The fill was compact...

A: For different structural designing undertakings like street work, water system waterway project, tan...

Q: Problem E A 4-meter-thick sand overlies a thick layer of clay. The water table is 1.80 meters below ...

Q: complete solution and drawing. if u can please add some explanation thankyou FN = 49 MN = 101 S...

A: Ee have to determine the value of reactions and forces (internal loadings) for points A, B, C, D and...

Q: Define and describe local buckling. Enumerate and differentiate classifications of structural steel ...

A: Local buckling: If individual parts or plate elements buckle, without overall buckling of the membe...

Q: Q-2: For a simply supported beam shown in figure below and by using Ultimate Strength Design Method,...

A: Given, WL=20 KN/mWD=18 KN/m (including self-weight)fy=400 MPafc'=30 MPab=250 mmd=400 mmd'=50 mmdt=42...

Q: The end block of a post-tensioned beam is 100 mm x 150 mm. A prestressing cable consisting of 7 wire...

Q: fr= 7.5 vf'c Determine the cracking moments for the section shown if fc=4000psi Convert dimensions a...

A: Given : fc = 4000 psi Modulus of rupture, fr = 7.5f'cfr = 7.5×4000fr = 474...

Q: Convert 100 min/cm^3 to m^3/h

Q: ISA 100 x 75 x 10 mm (cross-sectional area = 1650 mm2) Serves as a tensile member. This angle is wel...

A: For given arrangement, ISA 100 × 75 × 10 mm (cross-sectional area = 1650 mm) . the yield strength of...

Q: The

Q: The object having a specific gravity of 3.8 is floating in mercury of specific gravity of 13.6. If t...

A: Given data specific gravity for body=3.8 specific gravity for mercury=13.6 total volume=1 cu.m

Q: A small watershed has four rainfall gages located in the figure below. Total rainfall recorded at ea...

A: INTRODUCTION: the average rainfall depth is calulated by three method to analyse it. 1. Arithematic ...

Q: The water table is at a depth of 2.5 m below the base of a square footing used to support a column, ...

A: Given data, The net safe bearing capacity of the footing based on Terzaghi’s bearing capacity equat...

Q: The structure in the figure is composed of two rigid bars (AB and CD) and two vertical rods made of ...

Q: Steel Stress-Strain diagram. Which of the following statements is NOT correct? Engineering stress is...

A: GIVEN: Statements on steel stress-stress curve. TO FIND: INCORRECT OPTION

Q: Question Find shear friction f concrete which have compressive Strength 30, 50 and 7o MPa, by using ...

A: Since we only answer up to 3 subparts, we'll answer the first three. Please resubmit the question an...

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

The mean flow speed at a portion of the highway is 62.8 mph and a jam density of 110 vehicle/mile.

a) Compute the density when the flow is maximum

b) Compute the maximum capacity in vehicle/hour

c) Compute the speed of maximum flow

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 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

What would be the capacity of the highway if the jam density 200 veh/km, and having a flow rate of 500 veh/hr when density is 155 veh/km
Consider the problem of traffic flow on a three-lane (one direction) freeway which can be described by the Greenshields model. One lane of the three lanes on a section of this freeway will have to be closed to undertake an emergency bridge repair that is expected to take several hours. It is estimated that the capacity at the work zone will be reduced by 29 percent of that of the section just upstream of the work zone. The mean free flow speed of the highway is 55 mi/h and the jam density is 130 veh/mi/ln. It is estimated that the demand flow on the highway during the emergency repairs is 84 percent of the capacity. Using the deterministic approach, determine the following for the expected repair periods of 1 h, 1.5 h, 2.5 h, 2.75 h, and 3 h. (a) the maximum queue length (in veh) that will be formed (b) the total delay (in h) (c) the number of vehicles that will be affected by the incident (d) the average individual delay (in min)
Consider the problem of traffic flow on a three-lane (one direction) freeway which can be described by the Greenshields model. One lane of the three lanes on a section of this freeway will have to be closed to undertake an emergency bridge repair that is expected to take several hours. It is estimated that the capacity at the work zone will be reduced by 28 percent of that of the section just upstream of the work zone. The mean free flow speed of the highway is 60 mi/h and the jam density is 140 veh/mi/ln. It is estimated that the demand flow on the highway during the emergency repairs is 86 percent of the capacity. Using the deterministic approach, determine the following for the expected repair periods of 1 h,1.5 h,2.5 h,2.75 h, and 3 h. (a) the maximum queue length (in veh) that will be formed (b) the total delay (in h) (c) the number of vehicles that will be affected by the incident (d) the average individual delay (in min) (e) Plot a graph of average individual delay…
The SLEX was designed to carry a free-flow speed of 50 kph and a capacity of 4000 veh/hr. At a certain point near the intersection of a road leading to Laguna, there were 3600 vehicles counted in one hour. Assume a linear relationship. Determine the space-mean speed. Determine the jam density.
SITUATION: A section of the extension of the NLEX connecting Pampanga and Tarlac is known to have a free flow speed of 50 kph and a capacity of 3200 veh/hr. In a given hour, 2000 vehicles were counted at a specified point along the highway section. Determine the speed at maximum flow condition Determine the jam density in veh/km. Determine the density at flow condition.
A highway section has an average spacing of 7.62m under jam conditions and a free-flow speed of 88km/hr. Assuming that the relationship between speed and density is linear, determine the jam density, the maximum flow, the density at maximum flow, and the speed at maximum flow.
A section of the extension of the NLEX connecting Pampanga and Tarlac is known to have a free flow speed of 50 kph and a capacity of 3200 veh/hr. In a given hour, 2000 vehicles were counted at a specified point along the highway section. Determine the speed at maximum flow condition. Determine the jam density in veh/km. Determine the density at flow condition.
Traffic flow on a three-lane (one direction) freeway can be described by the Greenshields model. One lane of the three lanes on a section of this freeway will have to be closed to undertake an emergency bridge repair that is expected to take 2 hours. It is estimated that the capacity at the work zone will be reduced by 25 percent of that of the section just upstream of the work zone. The mean free flow speed of the highway is 60 mi/h and the jam density is 140 veh/mi/ln. If it is estimated that the demand flow on the highway during the emergency repairs is 85 percent of the capacity, using the deterministic approach, determine the following. the maximum queue length (in veh) that will be formed the total delay (in h) the number of vehicles that will be affected by the incident the average individual delay (in min)
Given a Greenshields linear density-speed relationship of us = 71.2 - 0.584k a. derive the flow-speed relationship equation b. Derive the flow-density relationship equation c. Find the mean free flow speed d. Find the jam density e.Find the capacity
Based on a linear speed-density model, with a jam density of 120 vpmpl and a free flow speed of 60 mph, estimate the density (vpmpl) if the speed is 30 mph.
The free-flow speed at section of an expressway is 85 mph and density at flow = 0 is 120 vehicle/mile. Determine the density when the flow is at maximum. Determine the maximum capacity. Determine the speed at maximum flow.
By assuming a linear speed-density relationship, the mean free flow speed in a highway lane equals 55 mph, and the jam density is observed to be 170 vpm. a. Plot the q-k-u curves (3 curves). b. Write down the speed-density and flow-density equations. c. Compute the maximum flow. d. Compute speeds and densities corresponding to a flow of 900 vph. e. Calculate average headway, gaps, clearance, and spacing at maximum flow and at jam density.