The dynamic deflection for EU4-safety barriers placed in radius has been studied. Six different cionfigurations have been investigated, i.e. Radius 100m, 200m, 300m, 400m, 800m and 1600m. Where the dynamic deflection was increased compared to the straight EU4-safety barrier, the post space was decreased to get the same dynamic deflection as for a straight safety barrier. A total of nine TB32 simulations hav ebeen performed.