Amarah in context: Street-network sprawl trends

Amarah in context

2.62.833.23.4<19751976–19901991–20052006–2020SNDi of street additions
2.62.833.23.4<19751976–19901991–20052006–2020SNDi of entire street network
AmarahMaysan (Region)Iraq (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Amarah plotted against Maysan and Iraq. The SNDi of new construction in Amarah followed a zig-zag trend with an overall increase, compared to Maysan which followed a zig-zag trend with an overall decrease and Iraq which peaked in 1976-1990. Most recently, Amarah's incremental SNDi rose from 2.69 to 2.77 between 1991-2005 and 2006-2020. In terms of the aggregate network, Amarah ranked 3rd out of 3 cities in Maysan and 56th out of 86 in Iraq as of 2020.

New Street Additions (2006–2020)

SNDi value
2.77
Rank in Iraq
46th of 86
Rank in Maysan
3rd of 3

Entire Network (Aggregate)

SNDi value
2.73
Rank in Iraq
56th of 86
Rank in Maysan
3rd of 3

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

What about similarly populated cities?

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
AmarahMalanjeTongliao

In new street additions, Amarah fluctuated in its street-construction patterns, while Malanje built increasingly disconnected streets from 1975 through 1991-2005, then improved and Tongliao built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Amarah fluctuated in connectivity, while Malanje grew more disconnected from 1975 through 1991-2005, then improved and Tongliao became progressively more disconnected. Notably, Amarah had a more sprawly network than Tongliao in 1975 but the two have since reversed their relative ranking.