Table below shows the frequency of each speed collected from a rural highway segment. calculate the 85-percentile speed. Note: The 85-percentile speed is designed as the speed at or below which 85% of the traffic is travelling. Speed (MPH Frequency 1 2 1 1 1 25 28 29 32 33 35 2 36 1 37 39 2 42 1 43 45 5 2 46 47 3 48 1 3 49 50 51 2 52 53 2 54 1 55 3 56 1 57 2 60 1 61 2 62 63 64 1 65 1 1 66 69

Table below shows the frequency of each speed collected from a rural highway segment. calculate the 85-percentile speed. Note: The 85-percentile speed is designed as the speed at or below which 85% of the traffic is travelling. Speed (MPH Frequency 1 2 1 1 1 25 28 29 32 33 35 2 36 1 37 39 2 42 1 43 45 5 2 46 47 3 48 1 3 49 50 51 2 52 53 2 54 1 55 3 56 1 57 2 60 1 61 2 62 63 64 1 65 1 1 66 69

Structural Analysis

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ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

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Question

Table below shows the frequency of each speed collected from a rural highway
segment. Caiculate the 85-percentile speed. Note: The 85-percentile speed is designed as the speed at
or below which 85% of the traffic is travelling.
Speed (MPH
25
Frequency
28
2
1
29
32
33
35
2
36
1
37
39
2
42
1
43
45
5
46
2
47
3
48
49
3
50
51
52
1
53
2
54
1
55
56
1
57
2
60
1
61
2
62
1
63
1
64
1
65
1
66
69

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