Comparisons
Yamanashi vs. the other two most closely populated regions in Japan: Miyazaki and Toyama
Yamanashi in context: Street-network sprawl of new development
The level of street-network sprawl in new development in Yamanashi followed a zig-zag trend with an overall increase. To get a sense of how street development has changed in Yamanashi, we can consider one of its most populous cities: Kofu. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Kofu peaked in 1976-1990.
How do development practices in Yamanashi fare in comparison to others in Japan? Most recently in 2006-2020, street construction in Yamanashi was the 14th-most disconnected out of the 44 regions in Japan. Its position in the ranks since 1975 has fallen; relative to other regions in Japan, street construction in Yamanashi has become more connected. Yamanashi ranked 11th in 1975, 18th in 1976-1990, 13th in 1991-2005 and 14th in 2006-2020.
Yamanashi in context: Aggregate street-network sprawl
As of 2020, the city with the most disconnected street network in Yamanashi is Kofu with an SNDi of 2.0, which is well-connected. Conversely, the most connected city is Kofu with an SNDi of 2.0, which is well-connected. See trends for these cities: Kofu, Kofu
The level of street-network sprawl in the aggregate network in Yamanashi rose steadily. To get a sense of how the aggregate street network has changed in Yamanashi, we can consider one of its most populous cities: Kofu. Disconnectivity in the most populous cities in Yamanashi follow the same region trend.
To date, Yamanashi is the 13th-most disconnected out of the 44 regions in Japan. Its position in the ranks since 1975 has fallen; relative to other regions in Japan, the street network in Yamanashi has become more connected. Yamanashi ranked 11th in 1975, 13th in 1976-1990, 13th in 1991-2005 and 13th in 2006-2020.