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Development of a New Crash-Cushion Concept for Compatibility Purposes of Rigid Obstacles Near the Road
Technical Paper
986065
Sector:
Language:
English
Abstract
This paper describes the development of a new, easy to handle
and economic crash cushion for rigid obstacles to reduce occupant
loads and injury risk during the impact.
Out of different concepts and experimental crash tests of
energy-absorbing barriers a mixture of concrete and granulated
plastics ("Styroporbeton'') has led to the best
results regarding car deceleration and intrusions.
The improvement of occupant safety of this system is documented
on the one side by comparing car deformation and acceleration
behavior of crash tests with and without a crash cushion in front
of a rigid barrier and on the other side by comparing the impact
velocities of crash tests with and without crash cushion, causing
similar car deformation.
For instance the car deformation of a 95 km/h crash against the
crash cushion can be compared with a crash against a rigid barrier
with an impact velocity of 52 kph.