ROSA lighting columns with confirmation of passive safety features

As confirmed by the test results, almost all anodized aluminum lighting columns produced by ROSA have passive safety features. Thanks to these properties, they minimize the effects of road collisions on people involved in such an incident, which is of crucial importance for the health and safety of road users..

At the beginning of 2021, we assessed ROSA lighting columns in terms of passive safety features according to the latest edition of the European standard EN 12767: 2019 "Passive safety of supporting structures for road devices. Requirements and test methods." The passive safety features were tested at TASS International, an independent laboratory in the Netherlands known for its testing for the automotive industry.

According to the requirements of the EN 12767: 2019 standard, in the event of a vehicle collision, ROSA columns have the following functional properties in terms of passive safety classification:

for SAL cylindrical-conical aluminum lighting columns, with a base, diameter at the base: Ø114, Ø120, Ø146 and Ø178 with or without extension arm

100-NE-B-S-SE-MD-0

70-NE-B-S-SE-MD-0

50-NE-B-S-SE-MD-0

(according to EN 12767: 2007 respectively 100NE3, 70NE3 and 50NE3)

for aluminum lighting columns SAL and MAL cylindrical-conical from Ø 114 to Ø 225 mm buried in the ground and SAL Ø 176 (ON) and Ø 180 (M, WŁN) with a base with or without extension arms

100-NE-C-S-SE-MD-0

70-NE-C-S-SE-MD-0

50-NE-C-S-SE-MD-0

(according to EN 12767: 2007 respectively 100NE2, 70NE2 and 50NE2)

This means that 

- the passive safety properties of ROSA columns for speeds of 50 km / h, 70 km / h and 100 km / h have been confirmed

- Rosa columns were classified as "non-energy absorbing"

- the safety level of Rosa brand columns has been determined as B and C, i.e. the highest to be achieved for products such as lighting columns (category A is available only for products made of soft, deformable materials)

- during the impact, the Rosa columns are cut at the base and the shaft of the column separates from the part mounted in the ground

- Rosa columns retain passive safety features after impact from all directions (highest score)

- the risk of roof indentation of the car as a result of the impact with Rosa pillar is 0 and means no or low risk (the highest score)

A detailed explanation of what the individual classification symbols refer to is presented in the figure below:

The changes contained in the current version of the standard refer in particular to the extension of the description of the passive safety classification of the product to include its behavior during an impact. Four new parameters have been added to the existing three required classifications (according to EN 12767: 2007): impact velocity, energy absorption level and passenger safety level: type of foundation, behavior after impact, impact direction class and risk of roof indentation.

I. Speed class

Speed class - test speed of impact with the vehicle - two crash tests of the structure are carried out during the test: compulsory test at low speed (35 km/h) and target 50, 70 or 100 km/h.

II. Energy absorption category

We define categories of structures in terms of the degree of energy absorption: HE (high level), LE (low level), NE (not absorbing energy)

III. Occupant safety level

Passenger safety level has been changed from the number system (from 1 to 4 according to EN 12767: 2007) to the one that uses letters from A to E. The parameter values for individual energy absorption classes have been reordered, which resulted in an increase of the achievable levels to five.

IV. Backfill type

It describes the type of foundation of the column in the ground: S (standard backfill), R (rigid surface) and X (other).span>

The type of foundation may affect the passive safety features of the column. The S-type classification defined in the standard means that the column has been installed in the ground with parameters compliant with the standard guidelines, the R-type is installed in a flat, rigid surface such as asphalt or concrete, and the X-type, the method of foundation according to the manufacturer's special guidelines.

V. Collapse mode

The classification defines two modes: SE (separation) and NS (no separation), which indicate how the column will behave in the event of a collision. SE means that during the impact the column will be sheared at the base, the shaft will separate from the part mounted in the ground, while the NS category means that the column structure will not separate.


 

VI. Directional class

The direction class describes the structure in terms of maintaining the passive safety features depending on the direction from which it will be hit. The design can be classified as: SD (unidirectional), BD (bidirectional) and MD (omni-directional).

Similarly, it means that SD class poles retain the features of passive safety when impacted from one direction of travel (e.g. a one-way road). BD class columns remain safe in the event of traffic coming from two opposite directions (e.g. a two-way road). On the other hand, structures in the MD class retain the features of passive safety during impact from all directions, therefore a pole with the MD classification is the safest choice.

VII. Roof indentation

A collision with a column may cause a dent in the roof of the vehicle, posing a threat to passengers. The classification defines two categories: 0 (no / low risk of denting) and class 1 (high risk of denting).