Emikhakheni eminingi ehlukene, izidingo zokuvikelwa kwemvelo ziqinile kakhulu namuhla. Iziteshi zokuxuba ezijwayelekile zingahlangabezana kanjani nezidingo zokuvikela imvelo? Lokhu sekuyinkinga ezinkampanini eziningi ezixuba iziteshi. Uma izinkampani zokukhiqiza ezifana neziteshi zokuxuba i-asphalt zithuthukisiwe ngokuphumelelayo ekuvikelweni kwemvelo, ngeke nje kuthuthukise ukukhiqizwa kokhonkolo lwe-asphalt, kodwa futhi kunciphise umthelela wokungcola kwemvelo. Ngakho-ke, ukuthuthukiswa kokuvikelwa kwemvelo kuye kwaba omunye wemisebenzi ebalulekile yokuxuba iziteshi.

Namuhla, izinkampani eziningi zibaluleke kakhulu ekongeni amandla kanye nokunciphisa ukusetshenziswa nokukhiqizwa okuluhlaza. Ngokukhiqizwa kwekhonkrithi ye-asphalt yamanje, iziteshi zokuxuba ziye zaba isixhumanisi esibaluleke kakhulu. Lapho isiteshi sokuxuba sikhiqiza izinto zokusetshenziswa zikakhonkolo, ukungcola okuningi okuhlukahlukene kungase kwenzeke. Kulezi zinkinga, kuzothinta ukukhiqizwa nokukhiqiza okuvamile, ngakho-ke kuyadingeka ukulungisa kahle indawo yonke. Phakathi kwazo, umsindo, ukungcoliswa kwamanzi kanye nokungcoliswa kothuli yizo zonke izinkinga ezivelele zokungcoliswa kwemvelo zeziteshi zokuxuba itiyela.
Ngemva kokuthola izici eziyinhloko zokungcoliswa kwemvelo, singaguqula ngempumelelo futhi sithuthukise izinkinga ezithile. Phakathi kwazo, ukungcoliswa komsindo kuyinkinga enzima kakhulu ukubhekana nayo, ngakho-ke sidinga ukukhetha uhlelo olusebenzayo lokuthuthukisa ukwenza uguquko nokulawula umsindo endaweni yokusebenzela evaliwe. Lokhu kuzonciphisa ngempumelelo umsindo okhiqizwa ukukhiqizwa kwemishini. Ngesikhathi esifanayo, ukulawulwa kwendle kanye nokuphathwa kwemfucuza nakho kuyimisebenzi ebalulekile, ngaleyo ndlela kunikeze iziqinisekiso ezisebenzayo zokwakhiwa kwesimanje.