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PASSIVELY SAFE SIGN POSTS
BS-EN 12767:2019
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BEFORE THE MILLENNIUM WE HAD
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Virtually no passively safe products
No BS-EN12767
Nothing to benchmark against
A problem
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THE NEED FOR SAFER ROADS
Records began 1926, in which year there were 4,886 fatalities in some 124,000 crashes.
Between 1951 and 2006 a total of 309,144 people were killed and 17.6 million were
injured in accidents on British roads.
The highest number of deaths in any one year was 9,169 people in 1941 during World
War II. The highest figure during peacetime was 7,985 in 1966.
In 1987, the government set the first national casualty reduction target. The target set
was that road casualties should drop by one-third by the year 2000 in comparison to the
average numbers for the years 1981 to 1985.
In 1999, when Great Britain had the safest roads in Europe apart from Sweden, the
government set a new national casualty reduction target, to be met by the year 2010.
The target for 2010, compared to the average for the years 1994 to 1998, was a
reduction of 40% in the number of people Killed or Seriously Injured (KSI) casualties, a
reduction of 50% the number of children KSI casualties and a reduction of 10% in the
rate of people slightly injured per 100 million vehicle kilometres.[3] By 2009, the results
were: killed or seriously injured 44% lower; children killed or seriously injured 61% lower
and the slight casualty rate was 37% lower.[
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(d) All roads:4
Object hit Fatal Serious Slight All
Road sign or
traffic signal 38 277 1,201 1,516
Crash barrier 56 381 1,908 2,345
(c) Motorways
Object hit Fatal Serious Slight All
Road sign or
traffic signal 4 18 32 54
Crash barrier 19 125 787 931
Department for Transport
Transport Statistics
Road Accidents Great Britain: 2001
The Casualty Report
(Extracted from Table 19)
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TOO MANY SIGNPOSTS?
OR JUST IN THE WRONG
LOCATIONS
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WAS THERE AN ANSWER ?
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FIRST UK PASSIVE INSTALLATION
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HOW CAN YOU DESCRIBE THE PROBLEM
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THE FIRST STANDARD
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BS EN 12767:2000 (published in 2001)
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Crash Testing of Tubular Steel Posts to Signs
Tests to BS EN 12767
Test Test
vehicle
Mass
kg
Speed
kph
Post Size Sign size and
mounting
height to sign
base
Pass/Fail
09N
B
Fiesta 900 100 88.9 * 3.2 *
3250
1500*1150,
2100
Pass
10N
B
Fiesta 900 100 114.3 * 5.0 *
3600
2000*1500,
2100
Fail
12N
B
Fiesta 900 35 88.9 * 4.0 *
3250
1500*1150,
2100
On Limit for
THIV
Conclusion – MAX SIZE 89 dia by 3.2 wall thickness
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WHAT IS A PASSIVELY SAFE SIGNPOST?
A post which passes the selected vehicle impact
test criteria to BSEN 12767:2000. “Passive
safety of support structures for road
equipment - Requirements and test methods”
Criteria for a NE,100 are aimed at making an
impact survivable when a Ford Fiesta type vehicle
hits a sign post at 100 kph and 35 kph
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EARLY CRASH TEST
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DEPARTURE FROM STANDARD
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FIRST UK PASSIVE SCHEME
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DRAFT ADVICE NOTE
“TA 89/03 PASSIVELY SAFE
SIGNPOSTS
TO BSEN 12767”
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EDUCATION ON PASSIVE PLACEMENT
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BS-EN12767:2007
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HELP WAS ON HAND
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THE GROWTH OF PASSIVE SAFETY
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More products becoming available, all to promote safer roadsides.
Knowledge and understanding was increasing.
Wind loading design was more accurate and site specific.
The customer is getting better value.
We save lives, and make the roads safer to drive on. (all passive products)
Is what we have correct and current?
Can we make it better?
2019 see the new Passive standard launched.
BS-EN 12767:2019
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THE NEW BSEN12767:2019
Publishing date: 10th September 2019
UK Annex date TBC
100 NE:2
To
100-NE-A-S-SE-MD-0
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OCCUPANT SAFETY LEVEL
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1 0 0 - N E - A - S - S E - M D - 1
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BACKFILL TYPE
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There are three types of backfill in which a product may be tested:
➢ Type S – Standard aggregates➢ Granular fill can include sands, gravels and cobbles, even boulders.
➢ Type X – Special
➢ Type R - Rigid➢ Concrete, socketed and concrete foundation
1 0 0 - N E - A - S - S E - M D - 1
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COLLAPSE MODE
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➢ Support structures shall be classified according to their collapse
mode.
➢ Determined by the support structure behavior in the high speed test.
➢ The following letters identify the collapse modes from which the
performance of the support structure shall be declared:
SE, Separation mode
NS, No Separation collapse mode
1 0 0 - N E - A - S - S E - M D - 1
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DIRECTION CLASS
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1 0 0 - N E - A - S - S E - M D - 1
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RISK OF ROOF INDENTATION
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➢ Class 0: roof deformation < 102 mm
➢ Class 1: roof deformation > 102 mm
1 0 0 - N E - A - S - S E - M D - 0
It should be noted that, when specifying passive
safety, the standard states that if not all properties are
of interest for the specifier, they can put NR (no
requirement) for that property.
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BS-EN12767:2019
NEW LATTIX CLASSIFICATION
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Passive Safety Classes by product (in accordance with EN 12767:2019) Speed Energy Occ Safety Backfill type Collapse Direction Roof Indentation
(Superseded Classes in Grey)
100, 70, 50 HE, LE, NE A, B, C, D, E S, X, R SE, NS SD, BD, MD 0 , 1
Product Type Manufacturer Distributor Item
Lattix Lattix AS SignPost Solutions 4412 50, 70, 100 NE C S SE BD 0
100 NE 2
Lattix Lattix AS SignPost Solutions 4420 50, 70, 100 NE B S SE MD 0
100 NE 3
Lattix Lattix AS SignPost Solutions 4425 50, 70, 100 NE C S SE MD 0
100 NE 2
Lattix Lattix AS Lattix AS 4430 50, 70, 100 NE B S SE MD 0
100 NE 3
Lattix Lattix AS SignPost Solutions 4438 50, 70, 100 NE C S SE MD 0
100 NE 2
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BS-EN12767: 2019
NEW OPTIMAST CLASSIFICATION
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(Superseded Classes in Grey)
100, 70, 50 HE, LE, NE
A, B, C, D, E S, X, R SE, NS SD, BD, MD 0 , 1
Product Type Manufacturer Distributor Item
Optimast SignPost Solutions SignPost Solutions 12750, 70,
100 NE B S SE MD 0
100 NE 3
Optimast SignPost Solutions SignPost Solutions 16850, 70,
100 NE B S SE MD 0
100 NE 3
Optimast SignPost Solutions SignPost Solutions 21950, 70,
100 NE B S SE MD 0
100 NE 3
Optimast SignPost Solutions SignPost Solutions 24450, 70,
100 NE B S SE MD 0
100 NE 3
Optimast SignPost Solutions SignPost Solutions 40050, 70,
100 NE C S SE BD 0
100 NE 2
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