Ulmer, Hurvitz, & Drewnowski, 2012). In preparation, we also
tested service areas with various thresholds (e.g. 5 minute,
15 minute, and 30 minute) and overlaid these layers with the
city’s “super neighborhoods,” i.e. geographic areas designated
by the city of Houston for local planning and governance
(http://www.houstontx.gov/superneighborhoods/index.html).
Based on this process, we determined in most cases, a 10-minute
driving radius resulted in adequate coverage of the participant’s
home super neighborhood as well as the adjacent super
neighborhoods.