| Share | Phrase |
|---|
| 22.22% | unobstructed [accessibility] path |
| 17.96% | unobstructed [accessibility] flow |
| 16.83% | unobstructed [accessibility] line |
| 13.55% | unobstructed [accessibility] view |
| 9.54% | unobstructed [accessibility] passage |
| 5.61% | unobstructed [accessibility] region |
| 4.79% | unobstructed [accessibility] space |
| 3.86% | substantially unobstructed |
| 3.59% | unobstructed [accessibility] hole |
| 2.02% | substantially [degree] unobstructed |