Public Health

Every year, the Department of Health releases a report on the injuries that kill NYC children [PDF]. And every year, the grim statistics show traffic to be the single largest cause of injury-related death among kids.

The New York City Department of Health is out with a new bulletin [PDF] articulating the public health benefits of walking, biking, and taking transit. Encouraging those modes -- and curbing the amount we drive -- will reduce deaths and injuries from traffic crashes, prevent lung disease by lowering exposure to air pollution, and improve cardiovascular health by increasing exercise.

Gerontologists in a laboratory at the University of Southern California exposed a group of mice to the same atmospheric conditions that humans encounter when driving along the freeway. Horrifyingly, they discovered that the mice’s brains showed the kind of swelling and inflammation associated with diseases such as Alzheimer’s. The researchers didn’t super-dose to get these results: The mice were exposed to freeway air for the equivalent of 15 hours a week -- less than the 18.5 hour average Americans spend in their cars. Jokes aside about getting those darn mice off the road, the study suggests that driving less may reduce our risk of brain damage.

Dr. Richard J. Jackson is Professor and Chair of Environmental Health Science in the UCLA School of Public Health.

Slate has posted this map to illustrate the concentration of "food deserts," where large numbers of people don't have access to fresh food. The USDA considers households more than a mile from a supermarket and without access to a car to be in food deserts, often with only convenience-store junk food for nourishment. In 2009, the agency found 2.3 million of these households. Here, Slate shows the preponderance of those households in Appalachia and the Deep South, and on Indian reservations.

So it looks like the lasting media image from last week's City Council hearing on bike policy will be Marty Markowitz's string of non-sequiturs sung to the tune of "My Favorite Things." The routine was allowed to proceed even though committee chair Jimmy Vacca began the hearings with a call for decorum at all times. (Maybe that's what prompted NYC Greenmarket founder and car-free Central Park pioneer Barry Benepe to observe, "The entire process appeared to be staged for the benefits of the loudmouths.")

Last Friday, Transportation Alternatives kicked off a new phase of its campaign for safer streets with the Stop Speeding Summit, bringing together doctors, elected officials, transportation advocates and engineers to outline the high costs of high vehicle speeds and plot a course toward slower traffic.

A new report written by the Victoria Transport Policy Institute's Todd Litman for the American Public Transit Association [PDF], the trade organization for the nation's transit agencies, reminds us that one of the most valuable benefits of transit is to our health. Summarizing the state of research in the field, "Evaluating Public Transportation Health Benefits" lays out the basic fact that increasing transit use is an easy way of preventing thousands of unnecessary deaths each year.