Abantu bahitamo asfalt kugirango bateze umuhanda? Sitasiyo ivanga asfalt yavuze ko ari ukubera impamvu zikurikira:
Ubwa mbere, asfalt ifite uburinganire bwiza, gutwara biroroshye kandi byoroshye, urusaku ruke, kandi ntabwo byoroshye kunyerera mumuhanda;

Icya kabiri, asfalt ifite ituze ryiza;
Icya gatatu, asfalt irihuta kubaka kandi byoroshye kubungabunga;
Icya kane, asfalt pavement itwara vuba;
Icya gatanu, umuhanda wa kaburimbo wa asfalt ntabwo uhungabanya abantu nibindi byiza byinshi. Isima nubutaka bukomeye, bugomba kugira ingingo, kandi kubaka biragoye. Kwiyongera k'ubushyuhe no kugabanuka mubihe bine nabyo bikunda gucika.
Birumvikana ko asfalt nayo ifite ibibi. Ibikoresho bya asfalt bikurura ubushyuhe. Iyo izuba rikomeye cyane mu cyi, asfalt izashonga gato, bivamo asfalt idashobora gukaraba amapine yimodoka igenda. Ibi rwose birababaje umutwe kubashoferi. Dukunze kumva rero ihohoterwa rituruka kuri shoferi.