The level of street-network sprawl in new development in Ibaraki peaked in 1976-1990. To get a sense of how street development has changed in Ibaraki, we can consider three of its most populous cities: Mito, Tsuchiura and Hitachi. Out of the three cities, Mito and Hitachi do not follow the same trend as the region. The level of street-network sprawl in new development in Mito followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Hitachi followed a zig-zag trend with an overall increase.

How do development practices in Ibaraki fare in comparison to others in Japan? Most recently in 2006-2020, street construction in Ibaraki was the 11th-most disconnected out of the 44 regions in Japan. Its position in the ranks since 1975 has risen; relative to other regions in Japan, street construction in Ibaraki has become more disconnected. Ibaraki ranked 21st in 1975, 14th in 1976-1990, 15th in 1991-2005 and 11th in 2006-2020.

As of 2020, the city with the most disconnected street network in Ibaraki is Mito with an SNDi of 2.46, which is relatively well-connected. Conversely, the most connected city is Tsukuba with an SNDi of 1.9, which is very well-connected. See trends for these cities: Tsukuba, Mito

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

To date, Ibaraki is the 18th-most disconnected out of the 44 regions in Japan. Its position in the ranks since 1975 has risen; relative to other regions in Japan, the street network in Ibaraki has become more disconnected. Ibaraki ranked 21st in 1975, 20th in 1976-1990, 19th in 1991-2005 and 18th in 2006-2020.