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

How do development practices in Markazi fare in comparison to others in Iran? Most recently in 2006-2020, street construction in Markazi was the 11th-most disconnected out of the 31 regions in Iran. Its position in the ranks since 1975 has risen; relative to other regions in Iran, street construction in Markazi has become more disconnected. Markazi ranked 16th in 1975, 9th in 1976-1990, 17th in 1991-2005 and 11th in 2006-2020.

As of 2020, the city with the most disconnected street network in Markazi is Saveh with an SNDi of 3.54, which is relatively sprawly. Conversely, the most connected city is Khomein with an SNDi of 2.27, which is well-connected. See trends for these cities: Khomein, Saveh

The level of street-network sprawl in the aggregate network in Markazi followed a zig-zag trend with an overall increase. To get a sense of how the aggregate street network has changed in Markazi, we can consider three of its most populous cities: Arak, Saveh and Khomein. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Arak fell steadily. The level of street-network sprawl in the aggregate network in Saveh was at its lowest in 1976-1990. The level of street-network sprawl in the aggregate network in Khomein rose steadily.

To date, Markazi is the 17th-most disconnected out of the 31 regions in Iran. Its position in the ranks since 1975 has fallen; relative to other regions in Iran, the street network in Markazi has become more connected. Markazi ranked 16th in 1975, 16th in 1976-1990, 17th in 1991-2005 and 17th in 2006-2020.