Mahmoudiyah in context: Street-network sprawl trends

Mahmoudiyah in context

2.533.54<19751976–19901991–20052006–2020SNDi of street additions
2.533.54<19751976–19901991–20052006–2020SNDi of entire street network
MahmoudiyahBabil (Region)Iraq (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Mahmoudiyah plotted against Babil and Iraq. The SNDi of new construction in Mahmoudiyah peaked in 1991-2005, compared to Babil which followed a zig-zag trend with an overall increase and Iraq which peaked in 1976-1990. Most recently, Mahmoudiyah's incremental SNDi fell from 3.09 to 2.93 between 1991-2005 and 2006-2020. In terms of the aggregate network, Mahmoudiyah ranked 3rd out of 6 cities in Babil and 50th out of 86 in Iraq as of 2020.

New Street Additions (2006–2020)

SNDi value
2.93
Rank in Iraq
54th of 86
Rank in Babil
2nd of 6

Entire Network (Aggregate)

SNDi value
2.65
Rank in Iraq
50th of 86
Rank in Babil
3rd of 6

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

What about similarly populated cities?

1.21.82.43<19751976–19901991–20052006–2020SNDi of street additions
1.21.82.43<19751976–19901991–20052006–2020SNDi of entire street network
MahmoudiyahYi'anLobnya

In new street additions, Mahmoudiyah and Yi'an both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Lobnya built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend.