ARSRPE Conference Paper Database

An Analysis of Less Hazardous Roadside Signposts

Lozzi, Andrei, Briozzo, Paul

Road Environment


This work arrives at an overview of requirements necessary to provide survivable impacts between a range of motorcars and energy-absorbing poles stand-up poles. Poles that are expected to remain upstanding after a crash. The requirements are for the space, forces and the energies that have to be dealt with in the development of such poles. The methods used include a validated force-intrusion model derived from full scale tests and the finite element crash simulation package LS-DYNA. \\\'These were used to\\\' estimate the intrusion into cars and the crush into the pole necessary to limit the car?s accelerations. Solutions were sought that provide a maximum acceleration of 20g at the centre of mass of cars impacting onto poles from 60 km/h.