Intsinga z'amashanyarazi zifite intera nini ya porogaramu. Kurugero, murwego rwo gukwirakwiza amashanyarazi, umujyi urimo gushyira mubikorwa ikoranabuhanga rishya ryohereza amashanyarazi mugusana inzu ishaje. Amashanyarazi adafite amashanyarazi yashyizwe kumatara yumuhanda yohereza amashanyarazi kumurongo wumuhanda, usimbuza uburyo gakondo bwohereza insinga. Ibi ntibizigama insinga gusa ahubwo binatezimbere umutekano. Byongeye kandi, mu rwego rw’ingufu zishobora kuvugururwa, amashanyarazi akomoka ku mirasire y’izuba n’umuyaga nayo agomba koherezwa kuri gride y’amashanyarazi akoresheje insinga z'amashanyarazi, bigatuma gride - ikora.
