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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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