Our research showing an association between neighborhood walkability and active transport (walking or cycling) was just published online by the Journal of Urban Health.  In collaboration with the New York City Department of Health and Mental Hygiene we analyzed data on the frequency of walking or biking ten blocks or more in the past month, data were collected as part of the 2003 New York City Community Health Survey.  Higher neighborhood walkability was associated with higher odds of reporting any engagement in active transport in the past month and among those who did walk or cycle in the past month higher neighborhood walkability was associated with a higher frequency of walking or cycling trips.  More details can be found in the neighborhood walkability section of the BEH web site.