The posted speed along Sumulong Highway is 60 km/hr. The Table below shows the summary of 64 samples of spot speeds along Sumulong Highway. 24.59 17 36.19 33 41.08 49 46.56 2 27.60 18 36.38 34 41.33 50 47.19 Determine the following: 3 27.71 19 36.38 35 41.57 51 47.19 4 31.18 20 36.38 36 41.57 52 47.19 Mean speed 5 31.46 21 36.57 37 41.82 53 47.51 I Median speed 6 31.46 22 36.76 38 41.82 54 49.18 7 32.04 23 37.15 39 42.07 55 49.53 1 Spot speed frequency histogram 8 32.79 24 37.15 40 42.07 56 49.89 9 33.26 25 37.35 41 43.11 57 50.24 10 33.26 26 38.80 42 43.65 58 50.61 85th Percentile speed 33.42 27 38.80 43 43.65 59 50.61 12 33.58 28 39.24 44 43.92 60 50.61 13 33.90 29 39.24 45 44.20 61 54.56 14 34.24 30 39.46 46 45.65 62 58.20 15 35.82 31 39.46 47 45.95 63 59.19 16 36.00 32 40.60 48 46.25 64 67.15
The posted speed along Sumulong Highway is 60 km/hr. The Table below shows the summary of 64 samples of spot speeds along Sumulong Highway. 24.59 17 36.19 33 41.08 49 46.56 2 27.60 18 36.38 34 41.33 50 47.19 Determine the following: 3 27.71 19 36.38 35 41.57 51 47.19 4 31.18 20 36.38 36 41.57 52 47.19 Mean speed 5 31.46 21 36.57 37 41.82 53 47.51 I Median speed 6 31.46 22 36.76 38 41.82 54 49.18 7 32.04 23 37.15 39 42.07 55 49.53 1 Spot speed frequency histogram 8 32.79 24 37.15 40 42.07 56 49.89 9 33.26 25 37.35 41 43.11 57 50.24 10 33.26 26 38.80 42 43.65 58 50.61 85th Percentile speed 33.42 27 38.80 43 43.65 59 50.61 12 33.58 28 39.24 44 43.92 60 50.61 13 33.90 29 39.24 45 44.20 61 54.56 14 34.24 30 39.46 46 45.65 62 58.20 15 35.82 31 39.46 47 45.95 63 59.19 16 36.00 32 40.60 48 46.25 64 67.15
Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter9: Capacity And Level Of Service For Highway Segments
Section: Chapter Questions
Problem 17P
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Question
Transcribed Image Text:The posted speed along Sumulong Highway is 60 km/hr. The Table below shows the
summary of 64 samples of spot speeds along Sumulong Highway.
24.59
17
36.19
33
41.08
49
46.56
2
27.60
18
36.38
34
41.33
50
47.19
41.57
Determine the following:
3
27.71
19
36.38
35
51
47.19
4
31.18
20
36.38
36
41.57
52
47.19
Mean speed
5
31.46
21
36.57
37
41.82
53
47.51
31.46
41.82
49.18
Median speed
6
22
36.76
38
54
7
32.04
23
37.15
39
42.07
55
49.53
I Spot speed frequency
histogram
8
32.79
24
37.15
40
42.07
56
49.89
9
33.26
25
37.35
41
43.11
57
50.24
10
33.26
26
38.80
42
43.65
58
50.61
85th Percentile speed
33.42
27
38.80
43
43.65
59
50.61
12
33.58
28
39.24
44
43.92
60
50.61
13
33.90
29
39.24
45
44.20
61
54.56
14
34.24
30
39.46
46
45.65
62
58.20
15
35.82
31
39.46
47
45.95
63
59.19
16
36.00
32
40.60
48
46.25
64
67.15
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