Abantu bitondera cyane kubwubatsi mumijyi, kandi gukoresha asfalt biriyongera. Igipimo cyo gusaba kuri sitasiyo ya Asfalt gihingwa gisanzwe gikura vuba.

Sitasiyo yo kuvanga Asfalt izahura namakosa amwe cyangwa make mugihe cyo gukoresha. Ibisanzwe cyane ni kwambara kangeven yimodoka ishyigikira uruziga. Rimwe na rimwe, hazaba urusaku rudasanzwe n'amaboko. Impamvu nyamukuru yibi nuko nyuma ya sitasiyo ya Asfalt yakoraga mugihe cyimbere, silinderi yo kumisha imbere izayoborwa ubushyuhe bwinshi, hanyuma amakimbirane azaba hagati yimodoka ishyigikira kandi yimodoka.
Ibihe byavuzwe haruguru nabyo bizaherekezwa no kunyeganyega gukabije, kuko sitasiyo ya Asfalt izatera icyuho hagati yibikoresho byometseho hamwe nibikoresho byumye, cyangwa umwanya wa bombi uzaba kunyerera. Mugihe uhuye niki kibazo, umukoresha agomba kongeramo amavuta kumwanya wo guturika hejuru yimodoka ishyigikira uruziga rushyigikiye hamwe na gari ya moshi nyuma yo gukora buri munsi.
Byongeye kandi, abakozi bakeneye no kwitondera kandi bahindura umwanya ubwoba bwo gutunganya ibicucu mugihe wongeyeho amavuta, hanyuma bagahindura neza umwanya uri hagati yimodoka ishyigikira hamwe na gari ya moshi ishobora gukora neza, byose Ingingo zandikira zirashobora gushimangirwa, kandi ntihazahinda umushyitsi.