Rockville Community Paves the Way for Healthful Living

• In Columbia, Mo., volunteers are organizing "walking school buses" in which parents escort lines of children to school on foot each day instead of having them sit on the bus. Officials are also slowing traffic flow, beefing up policing and improving crosswalks to make walking safer.

• In downtown Cleveland, volunteers are turning two old industrial sites in the low-income Slavic Village neighborhood into a golf course and a park, and transforming abandoned rail lines into trails for walking, cycling and other activities. Police there are also trying to make it safer for kids to walk to school.

• On the Winnebago Reservation in rural Nebraska, tribal leaders are building walkways across a major state highway that bisects the reservation, and constructing a new cluster of homes and businesses in the center of the community to encourage more walking by residents, who suffer from a high rate of diabetes.

• In Norwich, Vt., doctors are writing prescriptions for patients not to take pills -- but to walk, and volunteers are creating new trails to make it easier for people to follow the doctor's orders.

The federal Centers for Disease Control and Prevention in Atlanta, which unlocked and repainted its stairwells and decorated them with art by employees' children to encourage staff to eschew the elevators, is working to implement such changes on a broader scale.

Federal health officials are helping develop a model planning code that communities can adopt, using local zoning, ordinances and tax incentives to require sidewalks and other measures to promote walking.

Guidelines are also being developed to help employers make workplaces more activity-friendly.

"You could build a golf course and tennis courts, but they will reach only a few people. Walking is the most common and readily available physical activity. We put a focus on it because it's so available," said Andrew L. Dannenberg of the CDC's National Center for Environmental Health.

At King Farm, developers are nearly done constructing 3,200 housing units on 450 acres of old farmland. The nascent neighborhood was designed using so-called New Urbanism ideas, which in many ways re-creates the lifestyle that existed in small towns until the 1940s and '50s.

The development consists of a mix of townhouses and single-family homes on streets that are narrower than typical suburban roads and bordered with wide sidewalks. Many homes have front porches. All the garages are in back. Common areas and parks are scattered throughout. The homes are packed closely together around a commercial center that mixes office buildings with a grocery store, restaurants and other businesses -- all of which have their parking lots in the back to encourage foot traffic.

Even so, the design remains far from ideal. The neighborhood is bordered on all sides by busy roadways that require residents to get back in their cars if they want to leave. They have to take a shuttle bus to get safely to the nearby Shady Grove metro station. Nevertheless, residents praise their new environs.

"This is the first time we've ever been able to walk to a Safeway," said Tiffany Berman, 34, who recently moved to the neighborhood with her husband, Lou. "We really don't use the car at all in the neighborhood. It's a really unusual place."

Because King Farm is one of the largest and newest such developments in the nation, researchers chose it to become part of a four-year, $2 million federally funded study aimed at gauging the effects of such designs on the amount of activity that residents get, and on how much they weigh.

Investigators are studying about 2,400 people in 32 neighborhoods -- half in Maryland and half in the Seattle area, collecting detailed information about their habits by conducting surveys and asking them to wear special meters that measure the physical activity they are getting during two-week periods at different times of the year.

"We know that we can educate people and motivate them to exercise and that works okay for a short time, but within six months to a year most people are no longer active," said James F. Sallis, director of the Active Living Research Program at San Diego State University, who is leading the study.

"But with the built environment, if you build it right in the first place, people seem to automatically incorporate activity into their lifestyle, and their weight is controlled as long as they are there. That's why it's so important to get the built environment right -- because we've been doing it wrong for so long. We want to learn what makes an optimal walking environment."