Why would a highway in Angola fail?

A highway in Angola might fail due to a combination of inadequate funding, poor construction quality, and lack of maintenance. The country's challenging climate and terrain can also lead to rapid deterioration of infrastructure. Additionally, corruption and mismanagement can divert resources away from essential projects, further exacerbating issues. Lastly, insufficient planning and oversight may result in highways that do not meet the needs of the local population or traffic demands.