Results of traffic flow studies on a highway indicate that the flow-density relationship can be described by the expression. q=u&k - Us Ufx2 kj If speed and density observations give the data shown below, develop an appropriate expression for speed versus density for this highway. (Use the following as necessary: k. Assume u is in mi/h and k is in veh/mi. Do not include units in your answer.) Speed (mi/h) Density (veh/mi) 57 53 45 39 28 21 18 80 21 22 39 60 Determine the density (in veh/mi) at which the maximum volume will occur as well as the value of the maximum volume (in veh/h). density at maximum X 70 86 97

Results of traffic flow studies on a highway indicate that the flow-density relationship can be described by the expression. q=u&k - Us Ufx2 kj If speed and density observations give the data shown below, develop an appropriate expression for speed versus density for this highway. (Use the following as necessary: k. Assume u is in mi/h and k is in veh/mi. Do not include units in your answer.) Speed (mi/h) Density (veh/mi) 57 53 45 39 28 21 18 80 21 22 39 60 Determine the density (in veh/mi) at which the maximum volume will occur as well as the value of the maximum volume (in veh/h). density at maximum X 70 86 97

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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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

Results of traffic flow studies on a highway indicate that the flow-density relationship can be described by
the expression.
Us
q=uck -
If speed and density observations give the data shown below, develop an appropriate expression for speed
versus density for this highway. (Use the following as necessary: k. Assume u is in mi/h and k is in veh/mi.
Do not include units in your answer.)
Speed (mi/h) Density (veh/mi)
11
ufk²
kj
57
53
45
39
28
21
18
density at maximum
volume
21
22
39
60
70
86
97
Determine the density (in veh/mi) at which the maximum volume will occur as well as the value of the
maximum volume (in veh/h).
80
X
Your response differs from the correct answer by more than 10%. Double check
your calculations. veh/mi

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Step 3: Using regression analysis

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Step 4: Procedure of regression analysis

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Step 5: Calculation of constant b & a

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Step 6: Calculation of density (k) at which flow is max

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Step 7: Calculation of max volume & space mean speed

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Results of traffic flow studies on a highway indicate that the flow-density relationship can be described by the expression. q=uk- Uff2 kj If speed and density observations give the data shown below, develop an appropriate expression for speed versus density for this highway. (Use the following as necessary: k. Assume u is in mi/h and k is in veh/mi. Do not include units in your answer.) Speed (mi/h) Density (veh/mi) 57 16 53 28 45 40 40 59 28 69 21 89 17 98 Determine the density (in veh/mi) at which the maximum volume will occur as well as the value of the maximum volume (in veh/h). density at maximum volume maximum volume veh/mi veh/h
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