1. From the following table: Spot Speed 34.5 Car No. 1 2 3 4 5 6 7 42.2 33.6 38.1 39.8 41.2 51.9 Car No. 8 9 10 11 12 13 55 14 Spot Speed 43.6 36.9 38.2 48.8 48.1 31.1 42.0 Car No. 15 16 17 18 19 20 21 Spot Speed 38.1 32.8 44.6 43.9 36.5 41.5 40.0 Car No. 22 23 24 25 26 27 28 Spot Speed 51.1 50.3 39.7 42.8 31.3 38.3 43.5 Car No 29 30 31 32 33 34 35 Spot Speed 47.7 49.7 42.1 31.0 39.3 41.1 49.2

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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Determine the following:

1. Mode or Modal Speed

2. 85th–Percentile Speed

3. 60th–Percentile Speed

1. From the following table:
Car No.
1
2
3
4
5
6
7
Spot
Speed
34.5
42.2
33.6
38.1
39.8
41.2
51.9
Car No.
8
9
10
11
12
13
14
Spot
Speed
43.6
36.9
38.2
48.8
48.1
31.1
42.0
Car No.
15
16
17
18
19
20
21
Spot
Speed
38.1
32.8
44.6
43.9
36.5
41.5
40.0
NOTE: All spot speed are in mph. Use a range of 1.9 mph per class.
Car No.
22
23
24
25
26
27
28
Spot
Speed
51.1
50.3
39.7
42.8
31.3
38.3
43.5
Car No
29
30
31
32
33
34
35
Spot
Speed
47.7
49.7
42.1
31.0
39.3
41.1
49.2
Transcribed Image Text:1. From the following table: Car No. 1 2 3 4 5 6 7 Spot Speed 34.5 42.2 33.6 38.1 39.8 41.2 51.9 Car No. 8 9 10 11 12 13 14 Spot Speed 43.6 36.9 38.2 48.8 48.1 31.1 42.0 Car No. 15 16 17 18 19 20 21 Spot Speed 38.1 32.8 44.6 43.9 36.5 41.5 40.0 NOTE: All spot speed are in mph. Use a range of 1.9 mph per class. Car No. 22 23 24 25 26 27 28 Spot Speed 51.1 50.3 39.7 42.8 31.3 38.3 43.5 Car No 29 30 31 32 33 34 35 Spot Speed 47.7 49.7 42.1 31.0 39.3 41.1 49.2
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