It is nice and heart warming to know that you guys are trying to create and improve the road networks in Nigeria. I have evaluated the several options on naming roads as discussed above, what I have started doing recently (especially in Ikoyi City of Lagos) is to name a road in line with the government, and add an alternative name that the residents are familiar with. While I expect that the alternative names will show up in search for navigation, I do not expect that it will be displayed on the map by default. Please explain to me further the use of the alternative naming for roads.
Matteo, in response to your earlier message, see my response below.
There is no clear-cut of the boundaries for the cities. Aside from Lagos being a State, the city of Lagos is an island. Lagos mainland comprises of several cities, such as Ikeja, Ikorodu, Oshodi,Shomolu, etc. Therefore, Lagos city should not be labeled as a city. Because of the way the areas such as VGC, Victoria Island, Lekki, Ikoyi, etc. developed over time, they are typically referred to as cities. I have also kept to this convention
It will take a resident of Lagos State to properly demarcate the cities, because of these particular nature of the state.
Currently editing Kano, Lagos, Delta and part of Kogi and Rivers states. Will continue to improve the details.