Cika wannan jumla: Ana gwada manyan katako masu tsaro ta hanyar haɗuwa daidai da ɗaya ko fiye na manyan manyan gwaje-gwajen haɗari uku don shingen abin hawa. Waɗannan su ne PAS 68 (UK), IWA-14 (International) da ASTM (US). Ana amfani da irin waɗannan bollards don rage ƙarfin motar maƙiya kuma an tsara su don karewa daga yiwuwar fashewar fashewar fashewar motar (VBIED) da motar a matsayin makami (VAW) kamar waɗanda aka gani a cikin
Harin Nice a shekarar 2016 da kuma harin Westminster Bridge a shekarar 2017.