Development of Surface Roughness Standards for Pathways Used by Wheelchair Users: Final Report
Questionnaire Data
Table 7 displays the results from the surface questionnaire for all surfaces. Percent Acceptable is the percent of the subjects that answered that the surface was acceptable on the questionnaire. Rating mean is the average of the ratings that the subjects chose for each surface after they traveled over them. Figure 21 shows a graphical representation of the data presented in Table 7.
Table 7: Questionnaire Results
|
Roughness |
% Acceptable |
Rating Mean |
N |
Rating Std. Deviation |
|
0.205 |
100.00% |
4.48 |
75 |
0.75 |
|
0.309 |
95.90% |
3.92 |
74 |
0.91 |
|
0.383 |
98.60% |
3.79 |
75 |
0.98 |
|
0.405 |
100.00% |
3.9 |
15 |
0.78 |
|
0.441 |
100.00% |
4.32 |
11 |
0.68 |
|
0.457 |
100.00% |
4.33 |
9 |
0.56 |
|
0.485 |
100.00% |
4.09 |
11 |
0.63 |
|
0.486 |
100.00% |
4.17 |
15 |
0.72 |
|
0.494 |
100.00% |
4.64 |
11 |
0.45 |
|
0.565 |
87.50% |
4.06 |
8 |
0.56 |
|
0.572 |
86.50% |
3.24 |
75 |
1.04 |
|
0.578 |
90.40% |
3.44 |
73 |
1.1 |
|
0.673 |
60.00% |
2.23 |
15 |
1.24 |
|
0.718 |
84.50% |
3.13 |
72 |
1.16 |
|
0.778 |
100.00% |
3.09 |
11 |
0.77 |
|
0.804 |
100.00% |
3.13 |
15 |
0.97 |
|
0.885 |
85.70% |
2.86 |
8 |
0.75 |
|
0.914 |
90.90% |
4.05 |
11 |
0.76 |
|
0.921 |
71.90% |
2.64 |
58 |
1.12 |
|
0.947 |
100.00% |
3.53 |
15 |
0.97 |
|
1.053 |
25.00% |
2.13 |
8 |
0.83 |
|
1.213 |
63.00% |
2.58 |
73 |
1.35 |
|
1.26 |
77.80% |
2.94 |
9 |
1.07 |
|
1.421 |
20.00% |
1.43 |
15 |
0.82 |
|
1.545 |
41.40% |
1.82 |
58 |
1.12 |
|
1.68 |
27.30% |
1.32 |
11 |
0.98 |
|
2.017 |
12.50% |
1.19 |
8 |
1.1 |
Figure 21: Questionnaire for All Surfaces
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