The level of street-network sprawl in new development in Hilmand peaked in 1976-1990. To get a sense of how street development has changed in Hilmand, we can consider two of its most populous cities: Lashkar Gah and Girishk. Out of the two cities, Girishk does not follow the same trend as the region. The level of street-network sprawl in new development in Girishk followed a zig-zag trend with an overall increase.

How do development practices in Hilmand fare in comparison to others in Afghanistan? Most recently in 2006-2020, street construction in Hilmand was the 1st-most disconnected out of the 28 regions in Afghanistan. Its position in the ranks since 1975 has risen; relative to other regions in Afghanistan, street construction in Hilmand has become more disconnected. Hilmand ranked 2nd in 1975, 2nd in 1976-1990, 2nd in 1991-2005 and 1st in 2006-2020.

As of 2020, the city with the most disconnected street network in Hilmand is Lashkar Gah with an SNDi of 2.57, which is relatively well-connected. Conversely, the most connected city is Girishk with an SNDi of 2.4, which is well-connected. See trends for these cities: Girishk, Lashkar Gah

The level of street-network sprawl in the aggregate network in Hilmand peaked in 1976-1990. To get a sense of how the aggregate street network has changed in Hilmand, we can consider two of its most populous cities: Lashkar Gah and Girishk. Out of the two cities, Girishk does not follow the same trend as the region. The level of street-network sprawl in the aggregate network in Girishk followed a zig-zag trend with an overall increase.

To date, Hilmand is the 1st-most disconnected out of the 28 regions in Afghanistan. Its position in the ranks since 1975 has risen; relative to other regions in Afghanistan, the street network in Hilmand has become more disconnected. Hilmand ranked 2nd in 1975, 1st in 1976-1990, 1st in 1991-2005 and 1st in 2006-2020.