Hello. Thanks for mapping.
Difficult task here.
A few remarks.
You tagged quite a number of traces as a track. Not in line with the African guidelines for tagging highways. Just tag them as unclassified.  We cannot see the quality of the roads. 
You also mapped a number of buildings in an area. To me, they seem to me as abandoned, because you hardly see a roof. (both sidings give a shadow,
I Also added highways found by mapwithAI. 
Are you familiar with this possebility ? Give it a try.
fyi This is the achavi page where you can find my additions and changes i've made
Best regards and keep mapping
