sustainable safety: designing streets the dutch way
TRANSCRIPT
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Sustainable safety:designing streets the Dutch way
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What is sustainable safety?• Intrinsic safety or
lasting safety: safety by design not safety by regulation
• Streets become places where people aren’t pushed to the periphery by cars
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Sustainable safety in the Netherlands• Idea introduced in early 1990s as a way of tackling road deaths and injury
• “The central issue is that people, even if they are highly motivated to behave safely while using the road, make errors that may result in crashes.” Advancing Sustainable Safety, SWOV, 2005
• “Sustainable Safety aims to ensure that road safety depends as little as possible on individual road user decisions. The responsibility for safe road use should not be placed solely on the shoulders of road users but also on those who are responsible for the design and operation of the various elements of the traffic system.” Advancing Sustainable Safety, SWOV, 2005
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Who benefits?• Everyone!• Vehicles and people with
very different speeds and masses are not expected to share the same space• Urban environment
becomes more people-friendly.
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Five principles of sustainable safety• Functionality• Homogeneity• Predictability• Forgivingness• State awareness
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Functionality• All Dutch roads are
classified according to their function and fall into three categories: access, distributor and through roads
• These streets have a mono-functional design which is appropriate for their purpose
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Functionality
• Idea comes from Buchanan’s 1963 report Traffic in Towns
Swav.nl taken from Traffic in Towns
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Through roads• Fast roads carrying high
volumes of traffic• Motorways, trunk roads,
bypasses• Completely separate
facilities for cycling and walking and usually at a distance from the highway
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Distributor roads• These connect the
access roads to the through roads• They carry more
traffic than access streets so a greater degree of separation of modes is necessary
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Access roads
• These are typically residential streets • They are not through
roads and therefore carry very low volumes of traffic• They are designed to
slow down traffic
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Homogeneity• Difference between
mass, speed and direction of travel of vehicles using same space is minimized
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Predictability• Roads made predictable
by using consistent designs• Street design sets
expectations about how the space is used through use of materials and colour, and consistent design of crossings
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Forgivingness• Anticipating mistakes
and accepting that humans are fallible• Making sure that
mistakes aren’t fatal
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State awareness• Education becomes
an essential complement to sustainably safe road design • NOT a replacement
for good design
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Can we do this here?
Yes!
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Further information:SWOV – Advancing Sustainable Safety:http://www.swov.nl/rapport/dmdv/Advancing_sustainable_safety.pdf
Cycling Embassy of Great Britain:www.cycling-embassy.org.uk
Newcycling sustainble safety articles:http://newcycling.org/tag/sustainable_safety/