Table 5
RMS Mean (m/s2) | Standard Deviation (m/s2) | Number of Subjects | |||||||
Roughness (in/ft) Surface Type |
Seat |
Foot |
Back |
Seat |
Foot |
Back |
Seat |
Foot |
Back |
0.205 Engineered |
0.57 |
0.70 |
0.45 |
0.34 |
0.34 |
0.18 |
72 |
69 |
73 |
0.309 Engineered |
0.92 |
1.16 |
0.70 |
0.57 |
0.69 |
0.25 |
71 |
66 |
71 |
0.383 Engineered |
1.09 |
1.30 |
0.77 |
0.72 |
0.68 |
0.26 |
70 |
64 |
70 |
0.405 Outside |
0.73 |
1.05 |
0.56 |
0.38 |
0.57 |
0.17 |
14 |
14 |
14 |
0.441 Outside |
1.25 |
1.69 |
0.84 |
0.80 |
0.82 |
0.25 |
14 |
10 |
14 |
0.457 Outside |
1.40 |
1.06 |
0.91 |
1.07 |
0.51 |
1.04 |
8 |
5 |
8 |
0.485 Outside |
1.09 |
1.52 |
0.65 |
1.01 |
1.02 |
0.27 |
14 |
12 |
14 |
0.486 Outside |
0.86 |
1.46 |
0.65 |
0.51 |
1.29 |
0.22 |
14 |
14 |
14 |
0.494 Outside |
1.00 |
1.22 |
0.53 |
0.95 |
0.81 |
0.23 |
14 |
10 |
14 |
0.565 Outside |
1.82 |
2.90 |
1.17 |
1.27 |
2.50 |
0.91 |
7 |
5 |
7 |
0.572 Engineered |
1.64 |
2.06 |
1.26 |
0.99 |
1.16 |
0.55 |
72 |
68 |
72 |
0.578 Engineered |
1.37 |
1.72 |
1.10 |
0.88 |
0.98 |
0.80 |
70 |
67 |
70 |
0.673 Outside |
1.51 |
2.29 |
1.30 |
0.59 |
1.03 |
0.47 |
12 |
12 |
12 |
0.718 Engineered |
1.94 |
2.55 |
1.39 |
1.15 |
1.59 |
0.45 |
68 |
65 |
68 |
0.778 Outside |
2.33 |
2.79 |
1.30 |
2.14 |
1.59 |
0.56 |
14 |
13 |
14 |
0.804 Outside |
1.80 |
2.51 |
1.28 |
0.92 |
1.35 |
0.51 |
14 |
14 |
14 |
0.885 Outside |
2.12 |
3.12 |
1.26 |
1.34 |
2.87 |
0.84 |
7 |
5 |
7 |
0.914 Outside |
1.51 |
2.13 |
0.82 |
1.70 |
1.32 |
0.41 |
13 |
10 |
13 |
0.921 Engineered |
2.72 |
3.34 |
1.90 |
1.43 |
1.89 |
0.67 |
54 |
48 |
54 |
0.947 Outside |
1.47 |
2.10 |
1.12 |
0.67 |
1.10 |
0.34 |
15 |
15 |
16 |
1.053 Outside |
4.34 |
4.92 |
2.48 |
2.59 |
2.51 |
0.87 |
8 |
7 |
8 |
1.213 Engineered |
2.73 |
3.47 |
2.01 |
1.55 |
2.04 |
0.77 |
66 |
63 |
66 |
1.26 Outside |
3.13 |
3.02 |
1.69 |
2.02 |
1.33 |
1.13 |
8 |
5 |
8 |
1.421 Outside |
1.91 |
2.98 |
1.52 |
0.84 |
1.65 |
0.51 |
14 |
14 |
14 |
1.545 Engineered |
3.95 |
4.56 |
2.72 |
1.87 |
2.22 |
0.82 |
53 |
50 |
51 |
1.68 Outside |
3.94 |
5.21 |
3.28 |
1.99 |
2.08 |
1.19 |
13 |
10 |
13 |
2.017 Outside |
5.89 |
6.65 |
3.01 |
3.88 |
4.12 |
1.60 |
6 |
5 |
6 |