The level of street-network sprawl in new development in Chiba peaked in 1976-1990. To get a sense of how street development has changed in Chiba, we can consider three of its most populous cities: Kisarazu, Narita and Mobara. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Kisarazu followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Narita peaked in 1991-2005. The level of street-network sprawl in new development in Mobara peaked in 1991-2005.

As of 2020, the city with the most disconnected street network in Chiba is Mobara with an SNDi of 2.53, which is relatively well-connected. Conversely, the most connected city is Kisarazu with an SNDi of 2.14, which is well-connected. See trends for these cities: Kisarazu, Mobara

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