The level of street-network sprawl in new development in Massachusetts rose steadily. To get a sense of how street development has changed in Massachusetts, we can consider three of its most populous cities: Boston, Worcester and Lynn. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Boston peaked in 1991-2005. The level of street-network sprawl in new development in Worcester peaked in 1991-2005. The level of street-network sprawl in new development in Lynn peaked in 1976-1990.

How do development practices in Massachusetts fare in comparison to others in United States? Most recently in 2006-2020, street construction in Massachusetts was the 37th-most disconnected out of the 44 regions in United States. Its position in the ranks since 1975 has fallen; relative to other regions in United States, street construction in Massachusetts has become more connected. Massachusetts ranked 26th in 1975, 35th in 1976-1990, 35th in 1991-2005 and 37th in 2006-2020.

As of 2020, the city with the most disconnected street network in Massachusetts is Lynn with an SNDi of 3.43, which is relatively sprawly. Conversely, the most connected city is New Bedford with an SNDi of 2.05, which is well-connected. See trends for these cities: New Bedford, Lynn

The level of street-network sprawl in the aggregate network in Massachusetts rose steadily. To get a sense of how the aggregate street network has changed in Massachusetts, we can consider three of its most populous cities: Boston, Worcester and Lynn. Disconnectivity in the most populous cities in Massachusetts follow the same region trend.

To date, Massachusetts is the 23rd-most disconnected out of the 44 regions in United States. Its position in the ranks since 1975 has risen; relative to other regions in United States, the street network in Massachusetts has become more disconnected. Massachusetts ranked 26th in 1975, 26th in 1976-1990, 24th in 1991-2005 and 23rd in 2006-2020.