The level of street-network sprawl in new development in Fianarantsoa followed a zig-zag trend with an overall increase. To get a sense of how street development has changed in Fianarantsoa, we can consider three of its most populous cities: Ambatolahy II, Manakara and Farafangana. Out of the three cities, Ambatolahy II and Manakara do not follow the same trend as the region. The level of street-network sprawl in new development in Ambatolahy II peaked in 1991-2005. The level of street-network sprawl in new development in Manakara peaked in 1991-2005.

As of 2020, the city with the most disconnected street network in Fianarantsoa is Ambatolahy II with an SNDi of 6.83, which is very sprawly. Conversely, the most connected city is Farafangana with an SNDi of 1.56, which is very well-connected. See trends for these cities: Farafangana, Ambatolahy II

The level of street-network sprawl in the aggregate network in Fianarantsoa peaked in 1976-1990. To get a sense of how the aggregate street network has changed in Fianarantsoa, we can consider three of its most populous cities: Ambatolahy II, Manakara and Farafangana. Out of the three cities, Ambatolahy II and Manakara do not follow the same trend as the region. The level of street-network sprawl in the aggregate network in Ambatolahy II rose steadily. The level of street-network sprawl in the aggregate network in Manakara rose steadily.