Holger Levsen writes about the public transport map of Managua, Nicaragua, which is, according to him, the first detailed map of Managua’s bus network:

If you haven’t been to Managua, you might not be able to immediatly appreciate the usefulness of this. Up until now, there has been no map nor timetable for the bus system, which as you can see now easily and from far away, is actually quite big and is used by 80% of the population in a city, where the streets still have no names.