Uniquely constructed, this type of modified Frangible Street Lighting Pole has been engineered with the explicit intention of collapsing in progressive stages under impact so as to absorb energy from the collision and minimise the harmful effects of the accident. The gradual and predictable deformity of the impacted pole serves to decelerate a colliding vehicle in a controlled manner and thus reduces potential damage and injury to vehicles and occupants involved. The relative safety and cost-saving implications could be quite significant.
In May 2007, Coslee Heavy Metal Fabricators Pty Ltd and Monash University’s Department of Civil Engineering (in Melbourne) conducted joint evaluative testing and analysis (pioneering research) on the design and performance of Impact Absorbing Poles in accordance with VicRoads Energy Absorbing Lighting Pole Test Specification TCS 014-3-2001, Australian standard AS/NZS 1158.1.3 and US Standard NCHRP350. Coslee’s Impact Absorbing Poles strictly comply with the above stringent specifications.
Due to the safety optimization implications in their use, these poles need to be designed, evaluated and certified by the relevant authorities to meet Australian Standards specifications (AS/NZS 1158.1.3). Frangible (impact absorbing) Poles provide positive protection in low speed conditions (under 60 km/h) and are designed to avoid the risk of secondary incidents affecting pedestrians or other vehicles.