The level of street-network sprawl in new development in Sakarya peaked in 1976-1990. To get a sense of how street development has changed in Sakarya, we can consider three of its most populous cities: Sakarya, Hendek and Akyazı. Out of the three cities, Akyazı does not follow the same trend as the region. The level of street-network sprawl in new development in Akyazı rose steadily.

How do development practices in Sakarya fare in comparison to others in Turkey? Most recently in 2006-2020, street construction in Sakarya was the 58th-most disconnected out of the 74 regions in Turkey. Its position in the ranks since 1975 has risen; relative to other regions in Turkey, street construction in Sakarya has become more disconnected. Sakarya ranked 62nd in 1975, 64th in 1976-1990, 67th in 1991-2005 and 58th in 2006-2020.

As of 2020, the city with the most disconnected street network in Sakarya is Akyazı with an SNDi of 2.84, which is relatively well-connected. Conversely, the most connected city is Hendek with an SNDi of 2.27, which is well-connected. See trends for these cities: Hendek, Akyazı

The level of street-network sprawl in the aggregate network in Sakarya peaked in 1991-2005. To get a sense of how the aggregate street network has changed in Sakarya, we can consider three of its most populous cities: Sakarya, Hendek and Akyazı. Out of the three cities, Hendek and Akyazı do not follow the same trend as the region. The level of street-network sprawl in the aggregate network in Hendek peaked in 1976-1990. The level of street-network sprawl in the aggregate network in Akyazı rose steadily.

To date, Sakarya is the 66th-most disconnected out of the 74 regions in Turkey. Its position in the ranks since 1975 has fallen; relative to other regions in Turkey, the street network in Sakarya has become more connected. Sakarya ranked 62nd in 1975, 63rd in 1976-1990, 66th in 1991-2005 and 66th in 2006-2020.