Measured and perceived environmental characteristics are related to accelerometer defined physical activity in older adults

Table 1 Neighborhood Characteristics

	High-Walkable		Low-Walkable
Characteristic	Neighborhood A	Neighborhood B	Neighborhood C	Neighborhood D
Housing Density Total housing units in study area Housing density (units/acre)	1,547 14.47	1,233 11.74	511 0.99	421 0.67
Street Form Pedestrian infrastructure Street pattern Average block size (acres)	Sidewalks Merging Grids 4.45	Sidewalks Grid 5.24	No Sidewalks Curvilinear 15.09	No Sidewalks Irregular/mixed 23.09
Land Use Commercial centers Time to commercial centers (min)a	Integrated^b < 5	Integrated < 5	External^c > 15	External > 15

^aEstimated based upon walking at 3 mph from locations within the neighborhood. ^bIntegrated refers to the combination of high residential density and residential land uses in close proximity. ^cExternal refers to the strict separation of land uses.

ISSN: 1479-5868