Mezue ahịrịokwu na-esonụ: High nche bollards na-impact-anwale dị na otu ma ọ bụ karịa nke atọ isi okuku ule ratings maka ụgbọala mgbochi. Ndị a bụ PAS 68 (UK), IWA-14 (International) na ASTM (US). A na-eji bollards dị otú ahụ eme ihe iji belata ụgbọ ala ndị iro ma hazie ya iji chebe megide mwakpo ndị nwere ike ịnweta ụgbọ ala (VBIED) na ụgbọ ala dị ka ngwa agha (VAW) dịka ndị ahụ a hụrụ na
Mwakpo Nice mere n'afọ 2016 na mwakpo Westminster Bridge mere n'afọ 2017.