The roads in Luanda are generally of okay standard, as is the case on the main routes between cities, but elsewhere road quality greatly decreases. Don't be surprised if you encounter unexpected problems during the rainy season. In Luanda main streets are paved, but streets in the slums are in disrepair, and most roads have no lines or signals. As mentioned before, there are improvements being made throughout the city. Congestion is a major problem with lack of public transport and the plethora of minibus taxis.