1. Tekerezabollard
Ibiranga: Ubuso bufite imirongo yerekana cyangwa ibifuniko byerekana kugirango ijoro rirusheho kugaragara.
Gusaba: Parikingi zikoreshwa kenshi nijoro.
2. Ubwengebollard
Ibiranga: Bifite ibikoresho byo kugenzura cyangwa gukora ibikorwa bya kure, bishobora guhuzwa na sisitemu yo guhagarara neza.
Gusaba: Ahantu haparika ubwenge cyangwa ahantu h'umutekano mwinshi.
3. Amashanyarazibollard
Ibiranga: Igishushanyo kitagira amazi kibereye ahantu hagwa imvura nyinshi na shelegi cyangwa aho amazi ashobora kuba menshi.
Gusaba: Ahantu haparika.
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Igihe cyo kohereza: Mutarama-17-2025