Assume you are observing traffic in a single lane of a highway at a specific location. You measure the average headway and average spacing of passing vehicles as 3.2 seconds and 20 m, respectively. Calculate the flow, average speed, and density of the traffic stream in this lane.

Assume you are observing traffic in a single lane of a highway at a specific location. You measure the average headway and average spacing of passing vehicles as 3.2 seconds and 20 m, respectively. Calculate the flow, average speed, and density of the traffic stream in this lane.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter3: Characteristics Of The Driver, The Pedestrian, The Bicyclist, The Vehicle, and The Road

Section: Chapter Questions

Problem 10P

See similar textbooks

Related questions

Q: The back fill material for a vibroflotation project has the following grain sizes. D10 0.11mm D20 0....

Q: TRUSS F The truss carries applied loads at the joints shown in the figure. Compute the internal reac...

Q: 23. Three foundations are located next to each other as shown in Figure 3. Determine creases at A, B...

A: Given:- d=2m To find:- stress increase at A,B and C

Q: The gate shown in the figure is hinged at A and rests on a smooth floor at B. The gate is 3m square ...

Q: The square column is under compression due to a 50 KN load as shown in the figure. The member is com...

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

Q: Select the lightest W12 section available to support a dead load of 810 kN and a live load of 1,235 ...

A: Given - Dead Load - 810 kN Live load - 1235 kN Length - 6.5m, dia of bolts = 20 mm

Q: Dimensions of a rectangular sedimentation tasks are H = 3 m II B = 5 m L = 40 m %3D Discharge, Q = 5...

A: Given, Dimensions of the rectangular tank; L=4m, B=5m, H=3m Discharge=Q=500m³/h Density= 2650kg/m³ ...

Q: A simply supported one way reinforced concrete floor slab has a span of 4 m. It carries a service li...

A: Given, LL=9 KPa DL=2 KPa Concrete Cover=d'=20 mm fy=415 MPa fc=21 MPa L=4 m

Q: Find the area of this shape.

A: To determine the area of the shape/traverse. Given, COURSE LENGTH (m) BEARING 1-2 15.05 N 04...

Q: A permeability pumping test was carried out in a confined aquifer with the piezometric level before ...

A: solution Given thickness of aquifer B=5.7mts Q==15.6 m3hrobservations wells are at distance of r1=32...

Q: Formulate at least three product/service ideas that will help solve different problems In civil engi...

A: Introduction- In Civil engineering is a specialized design subject concerned with the designing, imp...

Q: 3. A concrete mix includes the following ingredients per cubic foot: (14 pts.) Cement 25 Ibs. Water ...

A: Given data - Cement -25 lbs Water - 11 lbs

Q: Determine support reaction

A: To determine the support reactions. We can determine the reactions at supports A and B by drawing ...

Q: constant head test is performed on a certain sample. A total of 123 cc of water is collected after 2...

Q: Sketch the cross-sectional picture of a W8x67 sitting on top of a W16x26 (the vertical centerlines a...

Q: 3. A 75 mm x 75 mm wooden block in cross section is subjected to a load P of 300 kN. The plane A mak...

A: A member subjected to pull is given and it has been asked to determine normal and shear stress throu...

Q: A catchment has four sub-areas. The annual precipitation and evaporation from each of the sub-areas ...

Q: Determine the reactions at all supports and the force transmitted through the hinge at C for the giv...

A: To find reaction at support

Q: Question 2 Problem No.2 A T-beam as shown is reinforced by 8-25mm diameter bars. Assuming fc'-4000ps...

A: solution: Given: fc=4000psi; fy=60 psi b= 400mm; bw=250mm; d = 100+250-75 = 275mm As=8π4252=3926.9 m...

Q: wers in a box and should be on the third place value after the decimal point In the Given Rectangula...

A: \Pressure along the sea water :P1=γH1=6418=1152lbft2triangular distributionF1=12P1H1×1ft=121152lbft2...

Q: 3.6 Refer to Problem 3.5. Determine the weight of water, in kN, to be added per 90) cubic meter (m³)...

A: We have to determine the solution of 3.6 in which we asked about weight of water to be added as per ...

Q: 20KNE 320KN

Q: A pre-tensioned concrete member of section 200 mm x 250 mm contains tendons of area 500 mm2 at centr...

Q: A beam from the exterior balcony of a house has a base of 300 mm and a height of 500 mm reinforced w...

Q: In the Given Rectangular Dam, determine the magnitude of the resultant R and where it intersects the...

Q: 1. For the given soll element, determine: C a. Determine the maximum and minimum principal stresses....

Q: Two angle bars B and C are riveted to bracket A. Knowing that both angle bars are in compression and...

Q: cantilever I-Beam which was used to support the corridor slab. The total length of the I-Beam is 2.4...

Q: 47 A 50-yr flood typhoon occurred in Metro Manila, started from 12:00AM of Dec 14 to 12:0O0PM of Dec...

A: Given:- The initial infiltration capacity of the soil = 0.013 m per hour The time constant = 0.43 pe...

Q: the

Q: 1. Portal Method The frame shown is subjected to lateral loads as shown. Supports S, T, U V, W and X...

Q: Your true weight is 62kgs. Your bathroom scale, which measures to the nearest 0.2kg says that you we...

A: Home measurements : True weight = 62 Kg Measured values 61.8 Kg

Q: Topic: Elements of a Horizontal Simple Circular Curve Question: A simple curve has an l= 38° 12' an...

Q: The average water surface area in a reservoir is 5000ha, calculate the water surface elevation in me...

Q: Determine support reaction

A: To find : We have to find support reaction Explanation : We took help of three known equilibrium co...

Q: 20KN 20KNE 50m2

Q: A typical rigid bar AB of the length 5m for a cantilever type car shed as shown in figure is hinged ...

A: The given data is as follows: Length of bar AB=5 mDiameter of steel wires=3 cmDistance of wires from...

Q: Situation 9: A beam is loaded as shown in the figure. Its cross-sectional properties are also given....

Q: 34. The plastic limit and liquid limit of a soil are 36% and 54% respectively. The percentage volume...

Q: 1. Portal Method The frame shown is subjected to lateral loads as shown. Supports S, T, U V, W and X...

A: The assumption in the portland method:- For each storey of the frame, the interior column will take ...

Q: Discuss

A: Computational member forces does not take into consideration little external atmospheric influencing...

Q: in the World water balance done by UNESCO 1975, what is the percentage of polar ice in term of perce...

A: Fresh water is the water that is used for drinking and other daily use purposes. Most of the freshw...

Q: The

Q: Determine the force in members FG, GC and CB of the truss used to support the sign, and state if the...

Q: A steel tape of nominal length 200 m with a plumb bob of mass 16 kg attached to it was used to measu...

Q: Calculate the polar second moment of inertia, J of the steel on in Fic...NO 04 (b)

A: Find MOI about x¯ axisIx=BD312-2bd312Ix=250340312-2250-202300312Ix=3.0133×108mm4Find MOI about y¯ ax...

Q: The dry unit weight of a sand sample in the loosest state is 13.34 kN/m³ and in the densest state, i...

Q: Determine normal stress

Q: A 75 mm x 75 mm wooden block in cross section is subjected to a load P of 300 kN. The plane A makes ...

A: Given data: Wooden block dimensions 75 mm x 75 mm Load=300 KN

Concept explainers

Intersection Design

An intersection is a location where two or more roads or railways meet or join. The traffic movement is controlled at the intersection that depends on its design and type. It governs the operation, efficiency, speed, capacity, and safety of the highways, airways, and railways. The movement of the pedestrian causes hazards and delays at the intersection.

Question

100%

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 by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

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

Traffic is observed at a single lane of a highway at a specific location. The average headway and average spacing of passing vehicles are measured as 3.5 seconds and 192 ft., respectively. Calculate the average speed (mph), flow (veh/hour), and density (veh/mile) of the traffic stream in this lane
assume you are observing traffic in a single lane of a highway at a specific location. You measure the average headway and average spacing of passing vehicles as 4.8 seconds and 150 ft, respectively. Calculate the flow (veh/hr) Choices: 500, 750, 208, 1250
Traffic on a three-lane (in each direction) freeway observes the following Greenshields flow relationship: V = 60D(1-D/360) where V is the traffic volume on vehicle per hour, and D is the traffic density in vehicles per mile. At 10:00 am, an accident occurs at point A (in the following Figure). The vehicles involved immediately pull off onto the shoulder of the roadway, but traffic passing the incident slows to 10 mph as drivers survey the damage on the side of the road (sometimes called "spectator slowing"). Lucy enters the freeway via the ramp at point B, also at 10:00 am. Upon entering the freeway, she notes that traffic on the freeway is moving along at about 40 mph. Scene at 10:00 am B Lucy 4 Miles A. How fast (i.e., at what speed) will back up from the "spectator slowing" progress upstream of the accident site? number only in units of miles per hour and rounded to the nearest whole number, i.e. XX.) B. When (i.e., at what time) will Lucy first hit slowing traffic due to the…
F] Vehicles travel at constant speeds on a one-lane one-way street between sections X and Y. An observer located at point X observes the four vehicles passing point X during a period of 10 seconds. The speeds of the vehicles are measured as 45, 45, 40, and 30mph, respectively. Calculate the average flow, density, time mean speed, and space mean speed.
Example -2 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? Solution:
Suppose you are noticing traffic in a single lane of an expressway at a particular area. The average headway is quantified as 4.2 seconds. The average spacing of successive vehicles is found as 38 meters. According to the findings, compute the average speed, flow, and density of this stream on the lane.
The primary elements of traffic flow are flow, density, and speed. Discuss with illustration the relationships between the three elements of a traffic flow.
While traveling along and against the traffic stream, a moving observer measured the relative flows as 50 vehicles/hr and 200 vehicles/hr, respectively. The average speeds of the moving observer while traveling along and against the stream are 20 km/hr and 30 km/hr, respectively. The density of the traffic stream (expressed in vehicles/km) is
Measurements from a single-lane roadway reveal that the average spacing and headway between passing vehicles are 200 ft and 2.4 seconds, respectively. What is the flow [veh/hr], density [veh/mi] and average speed [mi/hr] of traffic on this roadway?
1. Compute the rate of flow in vehicles per hour (two-decimal places) if the space mean speed is 30 mph and the density is 14 vehicles per km. 2. The spacing of the cars moving along the same lane of an expressway is 40 m center to center. If the average velocity of the car is 60 kph, determine the volume of traffic in veh/hr. 3. In a given instant, there were 2400 vehicles counted at a specific point along the portion of the TPLEX. The highway was designed to have a capacity of 3000 veh/hr with a free-flow speed of 60 kph. Compute the maximum value of the jam density in veh/km that could possibly occur during heavy traffic assuming linear speed-density relationship applies
The gap between 2 consecutive automobiles is 25 meters. At a certain time the front vehicle is traveling at 85 kph and the following vehicle at 60 kph. If both vehicles start accelerating at the same time, determine the gap between two vehicles after 21 seconds if the acceleration of the vehicles can be assumed to take the following forms: du / dt = 1.04 – 0.080ut (leading vehicle) du / dt = 1.03 - 0.075ut ( following vehicle)
Assume you are observing traffic in a single lane of a highway at a specific location. You measure the average headway and average spacing of passing vehicles as 3.2 seconds and 20 m, respectively. Calculate the flow, average speed, and density of the traffic stream in this lane. can you explain how to solve thank you