Research Article
Built Environment and Its Influences on Walking among Older Women: Use of Standardized Geographic Units to Define Urban Forms
Table 1
Summary of built environment attributes by cluster, Portland metro area.
| | Urban-form cluster | Median (interquartile range) distance in meters to the nearest: |
Median (interquartile range) density per km2 | | Bus stop | Light rail station | Commercial area |
Park | Intersections | Population |
| | Cluster 1: central city | 161 (80–241) | 2968 (1451–5465) | 228 (80–341) |
402 (241–569) | 111 (92–138) | 2591 (2062–3027) | | Cluster 2: city periphery | 241 (114–402) | 3817 (2037–7701) | 332 (161–580) |
433 (241–688) | 53 (38–69) | 1473 (1125–1793) | | Cluster 3: suburb | 433 (228–809) | 12876 (9927–15253) | 628 (322–995) |
410 (180–688) | 24 (10–42) | 777 (407–1199) | | Cluster 4: urban fringe with poor commercial area access | 1778 (1048–2680) | 11273 (7816–15331) | 2255 (1835–2747) |
724 (402–1074) | 5 (0–13) | 62 (0–334) | | Cluster 5: urban fringe with poor park area access | 1821 (1018–3030) | 8459 (5413–12436) | 1049 (613–1527) |
1884 (1479–2421) | 7 (2–17) | 166 (10–367) | | Cluster 6: satellite city | 6112 (4474–8697) | 23356 (21622–26551) | 515 (241–900) |
764 (433–1249) | 26 (8–50) | 641 (280–1093) |
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