The most common types of bridge barriers are rigid barriers, comprised of reinforced concrete walls or metal rails on concrete parapets. If improperly treated, the exposed ends of these barriers can pose a significant hazard to errant vehicles. In most instances an approach guardrail is used to shield the exposed end and to prevent vehicles from impacting these rigid ends.
Guardrail is typically more flexible than the bridge barriers to which they are attached. A transition section is therefore required wherever there is an increase in stiffness when going from a semi-rigid W-Beam/Thriebeam barrier into a more rigid bridge barrier.
Ezy-Guard 4 and Ezy-Guard HC are both approved for connection to the recently introduced ASBAP rigid transition. This is a longer transition compared to the older NCHRP-350 rigid transitions and uses the asymmetric transition panel and RHS blocks in place of the C-section blocks. Refer the technical drawings tab for more information.