Roadside barriers are generally classified according to their stiffness into one of three categories: flexible, semi-rigid, and rigid. If barriers have a dramatically different stiffness have to be joined together, a stiffness transition is usually required to reduce the risk of vehicle rollover, pocketing, or rail rupture
The Ingal® RBT is a MASH Test Level 3 compliant transition for connecting a range of semi-rigid barriers to a rigid concrete structure.
The transition length for connecting Ezy-Guard 4 to the rigid structure is 6m and 8m for Ezy-Guard HC. The Ingal RBT has been crash tested when attached to the same rigid barrier as detailed in the Austroads SBTA 21-005 Transition.