Neighborhood Aesthetics, Safety and Active Transport

As you’d expect in a city like NYC, many people walk or bike to get around.  This active transportation can be an important component of physical activity, particularly in neighborhoods that make active transportation an attractive and safe option.

Our latest paper, just published in the Active Living Research special issue of Annals of Behavioral Medicine, finds that aesthetic amenities like sidewalk cafes and neighborhood safety (as indicated by lower homicide rates) are associated with more walking and biking for transportation.  This follows on our earlier work (see the previous blog post) linking aesthetic amenities to lower BMI in another large NYC-based population; together these papers suggest that attractive features of neighborhood streets may have a role in supporting active lifestyles and a healthy weight.

However, both of these papers also explore interactions with neighborhood poverty and find that the explanatory power of aesthetic amenities may be weaker or absent in high poverty neighborhoods.  We have likewise found in both populations that the hypothesized associations of walkable urban form with active transportation and BMI, respectively, are weaker in high poverty neighborhoods.  The challenge of identifying and understanding what resources could support physical activity and obesity prevention in high poverty urban settings continues to drive much of our research.

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Neighborhood Attractiveness and Safety

In a new paper just published in the American Journal of Preventive Medicine, our group examines neighborhood attractiveness and safety as predictors of adult BMI.  Attractiveness indicators, including sidewalk cafés, landmark buildings, and street trees were linked to slightly lower BMI. However, our measures of neighborhood physical disorder and safety problems were not linked to higher BMI as hypothesized.

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New data on neighborhood walkability and active transport

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.

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Restaurant Environment

We are working on analyses of the distribution of restaurants, pizza outlets and fast food outlets across New York City and whether neighborhood access to restaurants influences the eating patterns of New Yorkers.  Below are maps for this project showing the 2005 Dunn and Bradstreet business listing data for these outlet types with kernel density estimates of neighborhood access.

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Urban Forestry project wins ATS Bates award

Monday at the American Thoracic Society annual conference Gina Lovasi was presented the Bates award for Promising Investigation in the Field of Environmental and Occupational Health.

She received the award for an abstract reporting on our work studying exposure to the urban tree canopy and childhood asthma and allergy.  For this research we used New York City LiDAR data to measure the urban forest canopy in exquisite detail throughout the city.  The image below shows an aerial photo next to the corresponding map of the tree canopy generated from the LiDAR data.

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Built Environment and Health (BEH)

Built Environment and Health (BEH) Research Group is an interdisciplinary program of research at Columbia University. Led by epidemiologist Andrew Rundle, BEH uses spatial data to examine the impact of the built environment, including land use, public transit, and housing on physical activity, diet, obesity, and other aspects of health. The group has investigators from public health, social science, and urban planning with a research staff based at the Institute of Social and Economic Research and Policy (ISERP).

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