| DESIGNING
HEALTHY COMMUNITIES
More
than a century ago came the recognition that the design and management
of cities had a direct relationship with the public health concerns
of American city-dwellers. While diseases such as tuberculosis,
polio and dysentery have all but been eradicated there is now an
epidemic of chronic "lifestyle" diseases. Obesity, heart disease
and respiratory illness are afflicting nearly half of our regional
population. Public health professionals have concluded that the
growing epidemics are a direct result of sedentary lifestyles. How
can public health and planning professionals collaborate to promote
healthier lifestyles? How can we design communities that promote
more physical activity? Can we increase the number of daily pedestrian
trips to school and work in new and existing communities? Can state
and local highway and subdivision designs incorporate sidewalks,
greenways and other features that will promote walking? RPA's Robert
Yaro and Tom Schmid from the Centers of Disease Control will present
a brief overview of the situation, followed by a moderator-led response
panel.
Overall
Questions To Consider:
- Land
use/real estate is typically not a public health issue. What are
the fundamental connections?
- What
are the environments that promote public health?
- What
are the environments that "decrease" individual activity levels?
- What
is the basis for good state planning and new partnerships?
- What
are the challenges?
- Should
there be a regulatory response?
- Is
there a demand for "healthy communities" from residents?
- What
could be the potential response to this issue from our states
and locales?
- How
can this region be a Northeast leader for healthy communities?
BACKGROUND
BRIEF - APRIL 13, 2001
Inactivity
Contributes to a Nationwide Epidemic
Obesity
is epidemic in the United States. More than 50% of U.S. adults are
now overweight, based on a body mass index (BMI) > 25. Furthermore,
22% of the U.S. adult population is obese, based on a BMI > 30-equivalent
to approximately 30 pounds overweight. Obesity is not simply a cosmetic
disorder. Approximately 60% of overweight 5 to 10 year old children
already have one associated biochemical or clinical cardiovascular
risk factor like hyperlipidemia, or elevated blood pressure or insulin
levels. Approximately 25% have two.
The
risk factors observed in children will become chronic diseases in
adults. Almost 80% of obese adults have diabetes, high blood cholesterol,
high blood pressure, coronary artery disease, gall bladder disease
or osteoarthritis, and almost 40% have two or more. Only smoking
exceeds obesity in its contribution to total mortality rates in
the United States. A recent estimate that suggested that the direct
and indirect costs of obesity in the United States approximated
10% of the national health care budget underscores why we can no
longer afford to ignore obesity as a major medical problem in the
United States.
Although
behaviors related to food intake that contribute to the epidemic
remain unclear, data from children have demonstrated an apparently
causal relationship between sedentary behavior and the onset and
persistence of obesity. Furthermore, although physical activity
may not substantially improve rates of weight loss among the obese,
activity appears to improve many of the diseases associated with
obesity, such as diabetes, hypertension, and cardiovascular disease.
These observations suggest that the most effective approach to begin
to control the obesity epidemic and its adverse effects is to promote
physical activity.
Do
We Want to Become More Physically Active?
"Two
studies published recently in the Journal of the American Medical
Association concluded that you can improve your health as effectively
through small lifestyle changes and moderate physical activity
as you can by following a vigorous exercise program. Such moderate
activity can be as simple as walking around the block, working
in the garden or taking the stairs instead of an elevator," from
the Surgeon General to the People of Philadelphia. January 2000.
"Philadelphia's
Mayor and Health Czar have teamed with the Philadelphia 76ers to
create the latest opportunity for a citywide health revolution.
Together, they challenge Philadelphia to lose 76 TONS in the year
2001!" from Mayor John Street's Fitness Program 2001.
Given
the increased national concern over urban sprawl, opportunities
abound to design and refine communities to promote physical activity.
This approach would enhance the health of communities and also make
them more livable and transit-friendly. National surveys support
broad public support for additional investment in recreational and
pedestrian amenities.
- 54%
support use of federal funds for more bike paths.
- 62%
support the use of state or local funds for more sidewalks.
- 74%
felt that sidewalks should be mandatory in new communities.
- 40%
would not vote for a politician who wanted to use tax funds for
walking or bicycling.
- 60%
would support a policy requiring sidewalks and paths between stores
and shopping areas.
Our
Regional Growth
The
Census Bureau forecasts that the nation's population will grow by
60 million by 2020-which would be the equivalent of adding two states
with the population and service demand of California. This growth
will require the construction of approximately one million new housing
units per year for the next two decades.
While
the New York metropolitan region is expected to grow at a slower
rate it will add two million new residents by 2020, a 10% increase
over current levels. During this same period, the region's economy
could grow by as much as a third, creating greater buying power
and a higher standard of living. However, growing highway congestion
in New York and other metropolitan regions could severely constrain
forecasted growth. For this reason, RPA's Third Regional Plan concluded
that the region's capacity for growth and its quality of life will
depend on the extent to which it can focus development in New York
City and other transit- and pedestrian-oriented centers. This growth
will require that the region's transit system, already the nation's
largest-be modernized and expanded.
The
extent of growth to be accommodated both in the Nation and in the
New York region, combined with the strong groundswell of interest
in smarter patterns of development would create a unique opportunity
to plan, build and rebuild communities that are conducive to healthier,
more active lifestyles. In short, smart growth is healthier growth.
RPA has calculated that failure to promote these new patterns of
growth and mobility could constrict expansion of the New York region's
economy by hundreds of billions of dollars annually by 2020. It
can be expected that similar outcomes would be experienced in other
regions across the country.
Can
Planners & Developers Help Fill a Prescription for Public Health?
Then…
The
disciplines of urban planning and public health have common origins.
More than a century ago came the recognition that the design and
management of cities had a direct relationship with the public health
concerns of American city-dwellers. At that time, widespread epidemics
of dysentery were caused by sewage contamination of the water supply.
In addition, poverty and close living quarters fostered tuberculosis.
Coal smoke and particulates blocked the sunlight necessary for the
synthesis of Vitamin-D in skin. As a result, over 20% of urban children
had rickets.
As
early as 1870, in his essay Public Parks and the Enlargement of
Towns, pioneer urban and park planner Frederick Law Olmsted identified
the strong link between good public health and community design,
opportunities for exercise and access to fresh air and sunlight.
Olmsted built these attributes into his plans for New York's Central
Park, Atlanta's Piedmont Park and dozens of other urban park systems
across the country. Later, the urban planning and public health
professions developed around efforts to reduce the incidence of
these diseases through the principles of improved planning, design
and management of America's urban communities:
&
Now
There
is now little disagreement that fat-rich diets and the lack of physical
activity are leading causes of obesity, related cardiovascular disease
and other serious chronic health conditions in the United States.
However, until now there has been little serious attention paid
to the relationship between public health and the societal shift
to suburban low density, automobile-oriented settlement patterns
over the past fifty years.
Today,
most people live in low-density environments and are largely reliant
on automobiles for their mobility.
- The
use of the automobile requires little physical activity and burns
few calories.
- Transit,
on the other hand, requires walking at both ends of a trip, and
it often requires stair-climbing and additional walking to access
goods and services.
Many
suburban centers are reaching the carrying capacity limits of their
highway systems, because they lack the concentration and mix of
activities to support any mode of transportation other than single-occupant
vehicles. At the same time, most suburban centers contain extensive
but isolated abandoned, undeveloped or underutilized parcels of
land.
- Promoting
reuse of these areas with infill development is the key to achieving
more compact pedestrian- and transit-oriented development patterns.
Only
30% of children who live within a mile of school walk to school.
Although 25% of all trips are less than one mile, 75% of these trips
are by car. To have a significant impact on public health, the goal
must be to increase personal activity rates on a daily basis.
- Travel
to school and work is a regular, daily activity.
- Travel
to shopping and recreational features is a regular, weekly activity.
Many
communities in our region do not have enough open space opportunities
per capita. At the same time, heavily trafficked roadways and neighborhood
land use patterns render some spaces underutilized.
- Parks,
gardens and neighborhood greenways are an important part of connecting
isolated communities and encouraging physical activity levels
to rise.
In
Our Region: New Jersey Takes the First Step
In
order to effectively impact public policy, we need to research and
document replicable experience that can inform the efforts of planners,
developers, bankers and public health professionals in the redevelopment
process.
The
New Jersey State Development and Redevelopment Plan was adopted
in March 2001 through a unique participatory process. The plan includes
a strong vision for healthy communities that draws the connection
between land use planning and increasing local activity levels in
urban centers, regions, towns, villages and hamlets. This includes
creating integrated commuter and light rail systems, designing communities
to support pedestrian and bicyclists via a network of parks & greenways,
and can be the pattern that links homes, schools and shopping-even
job sites. New Jersey's commitment to mixed land use principles
that retain the state's economic and public health makes this plan
a leader in the nation.
What
did New Jersey learn from looking at this connection between land
use and public health? What are the plans for implementation? How
and why should other states adapt the New Jersey approach to planning
& public health?
|