The level of street-network sprawl in new development in Rondônia followed a zig-zag trend with an overall increase. To get a sense of how street development has changed in Rondônia, we can consider three of its most populous cities: Porto Velho, Ji-Paraná and Ariquemes. Out of the three cities, Ariquemes does not follow the same trend as the region. The level of street-network sprawl in new development in Ariquemes peaked in 1976-1990.

How do development practices in Rondônia fare in comparison to others in Brazil? Most recently in 2006-2020, street construction in Rondônia was the 12th-most disconnected out of the 27 regions in Brazil. Its position in the ranks since 1975 has fallen; relative to other regions in Brazil, street construction in Rondônia has become more connected. Rondônia ranked 3rd in 1975, 9th in 1976-1990, 7th in 1991-2005 and 12th in 2006-2020.

As of 2020, the city with the most disconnected street network in Rondônia is Porto Velho with an SNDi of 2.47, which is relatively well-connected. Conversely, the most connected city is Vilhena with an SNDi of 1.38, which is very well-connected. See trends for these cities: Vilhena, Porto Velho

The level of street-network sprawl in the aggregate network in Rondônia rose steadily. To get a sense of how the aggregate street network has changed in Rondônia, we can consider three of its most populous cities: Porto Velho, Ji-Paraná and Ariquemes. Disconnectivity in the most populous cities in Rondônia follow the same region trend.

To date, Rondônia is the 6th-most disconnected out of the 27 regions in Brazil. Its position in the ranks since 1975 has fallen; relative to other regions in Brazil, the street network in Rondônia has become more connected. Rondônia ranked 3rd in 1975, 4th in 1976-1990, 5th in 1991-2005 and 6th in 2006-2020.