Route nationale 3b (RN 3b) is a secondary highway in Madagascar of 106 km, running from Sambava to Andapa. It crosses the region of Sava.
Selected locations on route (west to east) Andapa Tanambo Ambatobarika Sambava (intersection with RN 5a to Ambilobe and Antalaha)
See also List of roads in Madagascar Transport in Madagascar
References