Al Hillah in context: Street-network sprawl trends

Al Hillah in context

2.83.23.64<19751976–19901991–20052006–2020SNDi of street additions
2.83.23.64<19751976–19901991–20052006–2020SNDi of entire street network
Al HillahBabil (Region)Iraq (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Al Hillah plotted against Babil and Iraq. The SNDi of new construction in Al Hillah rose steadily, compared to Babil which followed a zig-zag trend with an overall increase and Iraq which peaked in 1976-1990. Most recently, Al Hillah's incremental SNDi rose from 3.23 to 4.0 between 1991-2005 and 2006-2020. In terms of the aggregate network, Al Hillah ranked 5th out of 6 cities in Babil and 70th out of 86 in Iraq as of 2020.

New Street Additions (2006–2020)

SNDi value
4.0
Rank in Iraq
79th of 86
Rank in Babil
5th of 6

Entire Network (Aggregate)

SNDi value
3.11
Rank in Iraq
70th of 86
Rank in Babil
5th of 6

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
Al HillahGayaOkene

Al Hillah, Gaya, and Okene all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network. Al Hillah and Okene have been growing further apart in their street-network character since 1975.