TABLE 2.
Environmental characteristics of the 60 segments
| Environmental characteristics | Mean | SD | Minimum–maximum |
|---|---|---|---|
| Estimated segment population (residents) | 29.1 | 8.0 | 13.5–47.6 |
| Street | |||
| Traffic volume (vehicles/30 min) | 26.1 | 35.9 | 1.0–198.0 |
| Number of traffic control efforts | 8.6 | 8.9 | 0.0–40.0 |
| Number of street lights | 7.0 | 4.0 | 0.0–20.0 |
| Sidewalk | |||
| Slab incongruence (%) | 0.33 | 0.29 | 0.0–1.1 |
| Defective (%) | 2.4 | 3.9 | 0.0–18.0 |
| Obstructed (%) | 2.0 | 3.2 | 0.0–16.3 |
| Crack growth/overgrowth instances | 184.7 | 70.3 | 70.0–380.0 |
| Aethetics | |||
| Grass height (cm) | 8.7 | 2.3 | 3.6–15.5 |
| Landscapable (%) | 89.7 | 14.3 | 30.0–100.0 |
| Properties with graffiti (%) | 3.1 | 7.2 | 0.0–27.8 |
| Pieces of litter | 88.2 | 116.8 | 0.0–576.7 |
| Properties with chipped paint (%) | 22.6 | 16.5 | 0.0–63.1 |
| Number of trees | 64.3 | 31.8 | 6.7–166.7 |
| Properties with flowers (%) | 51.5 | 23.2 | 0.0–100.0 |
SD=standard deviation