A NEW METHODOLOGY TO ESTIMATE DEFORMATION OF LONGITUDINAL SAFETY BARRIERS

Abstract

This paper presents a new high-efficiency methodology to estimate deformations of longitudinal road safety barriers, whose monitoring is a necessary condition for the maintenance of high safety standards. The methodology is based on the analysis of videotaped sequences, obtained by means of two matched video cameras (“stereo head”) installed on a vehicle adequately equipped. Two different theoretical approaches have been defined: monoscopic and stereoscopic. The new methodology has been used to empirically evaluate the longitudinal safety barrier deformations on an Italian road.