the need and use of “forgiving” roadsides, passive safe … 28 march 2018/4.15 carolien willems...
TRANSCRIPT
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The need and use of “forgiving” roadsides,
passive safe infrastructure according EN12767
Carolien Willems, Belgium
Member of WG10, TC226, Europe
Co- owner Safety Product
Designer of the ZIPpole
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Content
• Why is there a need for “forgiving” roadsides?
• How to design roadsides?
• EN12767, European standard to approve passive safe vertical road infrastructure
• Where to use EN12767 approved products?
• How to select the right product?
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Content
• Why is there a need for “forgiving” roadsides?
• How to design roadsides?
• EN12767, European standard to approve passive safe vertical road infrastructure
• Where to use EN12767 approved products?
• How to select the right product?
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Vision zero: “in every situation, a person might fail,
the roadsystem should not”
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47% of curves
where traffic flows at 80km/h or more
have hazardous roadsides
Source: Irap, Vaccines for roads, October 2015
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Belgium:
35,1% of people who die
in traffic,
die by driving off road.
The biggest risk to die in
an accident is by driving
into an obstacle in the
roadside.
Source: BIVV, Belgian Institute for road safety, 2013
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Content
• Why is there a need for “forgiving” roadsides?
• How to design roadsides?
• EN12767, European standard to approve passive safe vertical road infrastructure
• Where to use EN12767 approved products?
• How to select the right product?
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How to design roadsides?
What to do with obstacles:
• remove
• relocate
• fragilise or make “forgiving”, EN12767
• isolate obstacles, EN1317
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Content
• Why is there a need for “forgiving” roadsides?
• How to design roadsides?
• EN12767, European standard to approve passive safe vertical road infrastructure
• Where to use EN12767 approved products?
• How to select the right product?
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EN 12767, passive safety of support structures for road
equipment – requirements and test methods
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• Why is there a need for “forgiving” roadsides?
• How to design roadsides?
• EN12767, European standard to approve passive safe vertical road infrastructure
• Where to use EN12767 approved products?
• How to select the right product?
Content
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When using passive safe poles
on state roads?
= country guidelines
Finland: on roads where speed is ≥ 60km/h
and 1000 vehicles/day
Belgium: roads where speed is ≥ 50 km/h
and within the safety zone, without guardrails
Holland: NE3 poles if clear zone of 40m by 50m,
HE3 if the clear zone is smaller
…
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on roads designed to have fluent
traffic don’t only check allowed
speed limits, check the design
of the road, lowering speed is
often not enough
Categorize roads:
urban roads
connecting roads
arterials
When using passive safe poles
on city roads?
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Non Energy absorbing, EU: 100NE3 High Energy absorbing, EU: 100HE3
in case of no other road users in case of other road users
in case of stable / flat roadside in case of unstable roadside, ditches
in case of no secondary risk in case of secondary risk
in case of a large clear zone, > 40-40m in case of a limited clear zone, < 40-40m
When using passive safe poles
on state and city roads?
state roads state ánd city roads
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• Why is there a need for “forgiving” roadsides?
• How to design roadsides?
• EN12767, European standard to approve passive safe vertical road infrastructure
• Where to use EN12767 approved products?
• How to select the right product?
Content
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Selecting the right product:
Risk for secondary
accidents
If there are other
obstacles, it is
best to slow down
the colliding
vehicle.
Size of the safety zone
If the product has a
specific zone to hit in a
car crash, the installation
should be done
accordingly.
Risk of installation
The installation
guidelines of the
manufacturer should be
followed to guarantuee
the right functioning of
the product.
=> require installation
guidelines
Multidirectional
If the product can
be hit from
different directions,
the product should
be safe in all
directions.
=> investigate the
offered products
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Thank you !Some questions or remarks?
Carolien Willems, Belgium
Member of WG10, TC226, Europe
Co- owner Safety Product
Designer of the ZIPpole
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E (J)= m/2 * v² : (50² - 0²) < (70²-5²) < (100²-50²)
2500 < 4875 < 7500
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Impact at 100 km/h: Speed after impact: < 50 km/h
Impact at 100 km/h: Speed after impact: > 70 km/h
HE
LE
NE