A street by any other name

Usually I have trouble finding my way around a new city because, first, my sense of direction is crap, but also because I don't know the vocabulary used to describe the city. Various shops/ plazas/ trees/ soccer fields become landmarks, and my foreign description of street names rarely makes sense to taxi drivers. Not the case here. EVERYONE insists on giving directions according to the name of the street. I know the downtown area pretty well by now, and if someone were to say 'across the street from the vodacom shop,' or 'next to the bank', I'd know where to go. However, instead I'm told about the office that is 'at the corner of rue Kassaboubou and Kabangu'. First of all, street maps of Lubumbashi are hard to come by. Secondly, street signs themselves are scarce. What few there are have dark yellow stenciled letters on a bright blue background with a red border (pictured. Seriously. Can you read that??). I go everywhere on foot and they're hard to read! I wonder what the motorists do. Of course, maybe I'm just making excuses for my bad sense of direction....