Health Impact Assessments (HIAs) have been informing
transportation policy in London since the early nineties, when several reports
were published, establishing a direct link between health and transportation.
These reports offered HIAs as a tool to mitigate the adverse health impacts and
maximize the health benefits of transportation policies. HIAs have played a
major role in aiding London’s recent cycling revolution and raising awareness
for the need to reduce auto-dependency. They have also been used as a tool to
address inequities existing in the current transportation system and public
health programs that seem to ignore older population, children and depraved
population.
Background
In 1998, a committee headed by Sir Donald Acheson conducted
and produced a report, “An Independent Inquiry in to Inequalities in Health”.
In the section on Mobility, Transport and Pollution, the report introduces the
health impacts of transportation policy in London – for example, how a bus fare
increase can have a strong correlation with an increase in demand for statutory
support service, especially home helps. This report is one of the early
influencers of London’s proactive use of Health Impact Assessments as a
valuable tool, guiding policy and decision makers in many major transportation
projects.
At a World Health Organization (WHO) conference in June 1999,
the UK government signed a Charter on Transportation, Environment and Health
committing governments to promote health in transportation policies. Based on
this, in 2000, London Health Strategy identified Transport as one of the four
key priority areas, highlighting the importance of health impact considerations
in transportation arising from air quality, noise, inequality, community
severance, overall well being, physical activity and accidents. These relations
are now used in developing HIAs all over UK.
Following this, several reports were published that
established guidelines for developing HIAs. While some methods vary, the
procedure largely entails identifying health impacts to be assessed
(qualitative analysis), establishing how far these impacts are quantifiable and
carrying out quantitative analysis of that, and lastly, recommending measures
to minimize adverse effects and maximize benefits, based on qualitative and
quantitative results.
One of the more prominent HIAs to be conducted in London was
for the Olympics held in 2012. The HIA considered health impacts of
transportation from the planning stage to the ‘legacy period’ up to 2021. The
HIA was conducted in conjunction with the environment impact assessment the
Transport Plan of the Olympics, using epidemiological criteria for assessment.
Based on the HIA, National and London transport policies
recommended a shift towards active transportation and a reduction in motor
vehicle usage in the Transport Plan, based on adverse effects of emissions from
motor vehicles. However, due to the lack of empirical methods and availability
of data, the HIA could not assess the extent of benefits from cycling, walking
and other active transportation modes.
Health Impact Modeling for Active Transportation
More recent research in HIAs has been focused on assessing
the impacts of active travel. This
research, released earlier this year, suggests Health Impact Modeling tools
to measure the benefits of active transportation for all age groups and
recommends policy priorities to be focused on walking and cycling, while taking
into account road safety. Other tools like Integrated Transport and HealthImpact Modeling Tools are being used to model scenarios to achieve policy
shifts toward walking and cycling. Take a look at this website for an
example this tool in action.
London recognized as early as 2003 that HIAs have a positive
impact on influencing transport policy and changing the attitudes of policy
makers when it comes to public health. From the Olympics to Mayor’s TransportStrategy, HIAs have played a key role in promoting active travel. Unlike the
US, transport agencies no longer need to be convinced of the benefits of HIAs, however,
recent research and modeling tools are helping HIA to generate more accurate
results that only serve to underline their importance.
Sources:
http://www.visions2030.org.uk/
http://www.fph.org.uk/uploads/g_transport_hia.pdf
http://www.nice.org.uk/media/hiadocs/informing_transport_hia_in_london.pdf
Sources:
http://www.visions2030.org.uk/
http://www.fph.org.uk/uploads/g_transport_hia.pdf
http://www.nice.org.uk/media/hiadocs/informing_transport_hia_in_london.pdf
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