Ichord yayo yephaneli inkulu kunephaneli yebhuloho le-bailey kodwa isakhiwo sephaneli silula. Zonke izingxenye ziboshiwe ukuze ibhuloho lisetshenziswe njengebhuloho elihlala njalo ngenxa yokuphambuka kwayo okuncane.Izingxenye ziyashintshana futhi zisetshenziswa ngokuphindaphindiwe.Lolu hlobo lwebhuloho lunezinguquko ezihlukahlukene zesakhiwo ukuze zanelise umthamo wokulayisha ohlukile.
Ibhuloho lensimbi le-D-Type Big Span lisetshenziswe kakhulu ekusizeni izinhlekelele, ubunjiniyela bethrafikhi, ubunjiniyela bokongiwa kwamanzi kamasipala, ukuqinisa ibhuloho eliyingozi, njll. ngaphezu kokuba ibhuloho lensimbi elilungele impi.
1.Isakhiwo esilula
2.ukuvumelana nezimo okuqinile
3.ukuguquguquka okuhle
4. isikhathi eside
5.ukonga izindleko
6.uhlelo lokusebenza olubanzi