The level of street-network sprawl in new development in Bío-Bío followed a zig-zag trend with an overall increase. To get a sense of how street development has changed in Bío-Bío, we can consider three of its most populous cities: Concepción, Chiguayante and Los Ángeles. Out of the three cities, Los Ángeles does not follow the same trend as the region. The level of street-network sprawl in new development in Los Ángeles rose steadily.

As of 2020, the city with the most disconnected street network in Bío-Bío is Chiguayante with an SNDi of 3.9, which is relatively sprawly. Conversely, the most connected city is Penco with an SNDi of 2.92, which is moderately connected. See trends for these cities: Penco, Chiguayante

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