Passive Safety Standards

Passively safe street furniture is designed to minimise the severity of injury to occupants of a vehicle that collides with it. The European Standard BS EN 12767 defines a universal standard test that establishes the performance of a passively safe roadside structure.

The performance rating is displayed in the following format:

100/NE4 or NE4/100

The number indicates the class impact speed in kilometres per hour. The standard allows for testing at three speeds: 50, 70 or 100kph. All tests are conducted with a small (900kg) car in a head-on frontal impact. Glasdon passively safe products are tested at the highest possible speed to accurately simulate conditions on rural A roads, where the highest concentration of traffic fatalities occur.

The two letters represent the amount of energy absorbed by the structure: High energy absorbing (HE) structures slow the vehicle considerably on impact; Low energy absorbing (LE) structures measurably slow the vehicle but pose a much lower risk of injury to its occupants; Non energy absorbing (NE) structures have negligible or nil effect on the speed of the vehicle. All certified passively safe Glasdon products passed to NE standards.

The final number reflects the occupant safety level, based on the Acceleration Severity Index (ASI) and Theoretical Head Impact Velocity (THIV) scales and according to European Standard BS EN 1317-1. The available levels are 1-4, where 4 is the highest possible safety level. The vast majority of our certified passively safe products are rated 4.

Glasdon passively safe highways products are tested by accredited independent specialists at MIRA and TRL. Where testing has been conducted, the performance rating is clearly shown on the product page, and videos are available on request.

19 June 2013
The Green Web Foundation
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