Question
In: Civil Engineering
Consider the headway data shown in the following table. Data was taken from the center lane...
Consider the headway data shown in the following table. Data was taken from the center lane a three-lane intersection approach for a total of ten signal cycles. For the purposes of the analysis, the data may be considered to have been collected under ideal conditions.
- Calculate the average headway per vehicle ID, and plot the average headways with respect to vehicle positions in the queue for the data shown below. Sketch an approximate best-fit curve through the data.
- Use the approximate best-fit curve constructed in Part (1), determine the saturation headway and the start-up lost time for the data.
- What is the saturation flow rate for this data?
|
Vehicle position |
Signal cycle ID |
|||||||||
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
|
|
1 |
3.6 |
3.7 |
3.5 |
3.6 |
3.4 |
3.3 |
3.6 |
3.7 |
3.5 |
3.7 |
|
2 |
2.6 |
3.0 |
2.4 |
2.6 |
2.2 |
2.2 |
2.7 |
2.8 |
2.7 |
2.8 |
|
3 |
2.0 |
2.4 |
2.0 |
2.1 |
1.8 |
2.0 |
2.4 |
2.4 |
2.3 |
2.4 |
|
4 |
1.7 |
2.0 |
2.0 |
2.0 |
1.7 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
|
5 |
1.6 |
1.9 |
2.0 |
1.9 |
1.7 |
1.8 |
1.9 |
2.1 |
2.0 |
1.8 |
|
6 |
1.7 |
1.8 |
1.9 |
1.9 |
1.6 |
1.7 |
1.8 |
1.8 |
1.8 |
1.7 |
|
7 |
1.7 |
1.8 |
1.8 |
1.8 |
1.7 |
1.7 |
1.7 |
1.9 |
1.9 |
1.9 |
|
8 |
1.6 |
1.7 |
1.8 |
1.8 |
1.7 |
1.7 |
1.8 |
1.8 |
1.9 |
1.9 |
|
9 |
// |
1.8 |
// |
1.6 |
// |
1.7 |
1.7 |
// |
// |
1.7 |
|
10 |
// |
1.7 |
// |
1.8 |
// |
// |
1.7 |
// |
// |
1.7 |
Solutions
Ally Wells answered 1 year agoRelated Solutions
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Consider the data shown in the following table.
Identify any modifications that would result in a more
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Comment the characteristics of participants.
Baseline Characteristics of
Participants in Randomized Trial
Characteristic
Treatment Group
(n = 361)
Placebo Group
(n = 344)
Age, years
45.8
47.6
Male sex
201
198
Systolic blood pressure
128.25 ± 14.2
121.7 ± 13.91
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184
180
White
107
100
Hispanic
70
64
Consider the following data on x and y shown in the table below, x 2 4...
Consider the following data on x and y shown in the table
below,
x
2
4
7
10
12
15
18
20
21
25
y
5
10
12
22
25
27
39
50
47
65
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Current Smoker
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882
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220,965
No
673
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189,254
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Using the information from the table below, answer the following
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Started fight before the age of 15
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Girls
Row Total
No
163
184
347
(47.0%)
(53.0%)
(89.9%)
Yes
32
7
39
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(17.9%)...
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0.33
0.01
0.69
0.04
0.46
0.16
1.67
0.12
0.03
0.17
0.09
0.17
0.57
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0.85
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1.17
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0.74
1.72
0.28
0.12
1.37
0.61
0.06
1.46
0.42
0.03
0.39
0.10
0.02
0.20
1.08
1.27
0.30
1.13
0.06
0.27
3.76
0.43
0.04
0.37
0.09
0.09
0.22
1.06
0.09
0.01
0.17
1.23
0.12
1.51
0.13...
Data from a small bookstore are shown in the accompanying table. The manager wants to predict...
Data from a small bookstore are shown in the accompanying table.
The manager wants to predict Sales from Number of Sales People
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Number of ales peaople working
sale (in $1000)
2
10
3
12
5
14
8
15
10
19
10
21
13
21
14
22
17
22
19
27
x(bar)= 10.1
y(bar)=18.3
SD(x)=5.74
SD(y)=5.33
A) find the slope etimate, b1. B) What does
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Consider the following data for two independent (not matched) random samples taken from two normal populations....
Consider the following data for two independent (not matched)
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Data taken from the accounting records of Sherri’s Designs on December 31 are shown. Operating expenses...
Data taken from the accounting records of Sherri’s Designs on
December 31 are shown.
Operating expenses
$1,000
Sales revenue
5,000
Inventory, Jan. 1, 2019
1,600
Purchases
1,200
Interest revenue
250
Loss on disposal of a discontinued component of the business
(pre-tax)
400
Inventory, Dec. 31, 2019
750
Income tax expense
660
Sherri’s Designs has 2,000 shares of common stock outstanding
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Required:
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