Ama-bollard e-PU anwebekayo anokunwebeka okukhulu, ayabuya emuva ngemva kokushayisana ngaphandle kokulimaza izimoto. Aamelana ne-UV, isixwayiso esikhanyayo esicacile, alula futhi kulula ukuwafaka ukuze kuhlukaniswe umgwaqo.