The level of street-network sprawl in new development in Gilan rose steadily. To get a sense of how street development has changed in Gilan, we can consider three of its most populous cities: Rasht, Lahijan and Bandar-e Anzali. Out of the three cities, Lahijan does not follow the same trend as the region. The level of street-network sprawl in new development in Lahijan was at its lowest in 1976-1990.

How do development practices in Gilan fare in comparison to others in Iran? Most recently in 2006-2020, street construction in Gilan was the 30th-most disconnected out of the 31 regions in Iran. Its position in the ranks since 1975 has fallen; relative to other regions in Iran, street construction in Gilan has become more connected. Gilan ranked 28th in 1975, 30th in 1976-1990, 30th in 1991-2005 and 30th in 2006-2020.

As of 2020, the city with the most disconnected street network in Gilan is Rasht with an SNDi of 4.56, which is sprawly. Conversely, the most connected city is Lahijan with an SNDi of 2.6, which is relatively well-connected. See trends for these cities: Lahijan, Rasht

The level of street-network sprawl in the aggregate network in Gilan rose steadily. To get a sense of how the aggregate street network has changed in Gilan, we can consider three of its most populous cities: Rasht, Lahijan and Bandar-e Anzali. Out of the three cities, Lahijan does not follow the same trend as the region. The level of street-network sprawl in the aggregate network in Lahijan was at its lowest in 1976-1990.

To date, Gilan is the 30th-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 Gilan has become more connected. Gilan ranked 28th in 1975, 28th in 1976-1990, 30th in 1991-2005 and 30th in 2006-2020.