Gutunganya Asfalt: Ibikoresho bya Asfalt byashyizweho nibisigisigi nyuma yo gutandukana namakara cyangwa peteroli. Wongeyeho uburyo butandukanye bwo gutunganya no gutunganya, asfalt asfalt (yahinduwe kugarura no kuvugurura) yakozwe mumishinga itandukanye yo mumuhanda

Kubungabunga umuhanda: Umuhanda ni ibikorwa remezo byingenzi byubaka ubukungu bwigihugu. Iterambere ryubwubatsi no kubungabunga urunuka kurushaho kurushaho. Ariko, kubera ibikorwa byasubiwemo byimodoka hamwe nisukari no gusenya ibintu bisanzwe, imikorere yimikorere yumuhanda mugukoresha nabi ni umukene. Mu rwego rwo kuzuza ibyifuzo byubukungu bwimibereho myiza kandi bukamenya ko ubuzima bwimikorere n'imikorere yakazi, birakenewe ko dushimangira imiyoborere yo kubungabunga umuhanda.

Kubaka umuhanda: Kubaka umuhanda bigira uruhare runini mu guteza imbere ubukungu. Kubaka umuhanda ntibishobora kunoza gusa ubushobozi bwihuse bwo gutwara ibintu, ariko kandi wihutisha gutembera kwabantu, bityo utezimbere ubukungu. Kubangwa kumuhanda nabyo bigira uruhare runini mugutezimbere ubuzima bwabaturage. Imiterere myiza yumuhanda irashobora koroshya ingendo zabantu no guha abaturage serivisi nziza zubuzima. Kurugero, kuvugurura imihanda yo mumihanda birashobora kugabanya ubwinshi bwimodoka, kugabanya igihe cyo kugenda no kuzamura imibereho yabaturage.

Ibisabwa mu ndege bigezweho ku mihanda yikibuga cyindege ntabwo ari uko bagomba kugira imbaraga zihagije, ariko kandi ko bagomba kugira inyungu zijyanye nibisabwa na tagisi yihuta yindege. Umuhanda wa Roway ukwiye kugira ubukana bukwiye (kurwanya scod) hamwe no kwiza. Abatirisi babishoboye bakeneye kubahiriza ibisabwa, ubukana no gukomera icyarimwe, kugirango bahuze indege mugihe cyo guhaguruka no kugwa, no kugwa ubuzima bwa serivisi no kunyuramo.