Iminyango yengilazi engashayi umlilo ayinayo kuphela izakhiwo ezingashi nokushisa, kodwa futhi ibe nemiphumela evelele yokuvala umsindo. Ingacutshungulwa ibe yi-arc. Kunezinhlobo eziningi zeminyango yengilazi engashi, futhi ukucaciswa komklamo nobukhulu beminyango kumaphrojekthi wokwakha ahlukene ahlukile. Ngakho-ke, iminyango yengilazi engenamlilo idinga ukuhlelwa ngokwesimo sangempela sephrojekthi ukuze ihlangabezane nezidingo.