Al-Zawamel in context: Street-network sprawl trends

Al-Zawamel in context

2.533.54<19751976–19901991–20052006–2020SNDi of street additions
2.533.54<19751976–19901991–20052006–2020SNDi of entire street network
Al-ZawamelAsh Sharqiyah (Region)Egypt (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Al-Zawamel plotted against Ash Sharqiyah and Egypt. The SNDi of new construction in Al-Zawamel peaked in 1991-2005, compared to Ash Sharqiyah which followed a zig-zag trend with an overall increase and Egypt which followed a zig-zag trend with an overall increase. Most recently, Al-Zawamel's incremental SNDi fell from 4.23 to 3.86 between 1991-2005 and 2006-2020. In terms of the aggregate network, Al-Zawamel ranked 26th out of 28 cities in Ash Sharqiyah and 130th out of 213 in Egypt as of 2020.

New Street Additions (2006–2020)

SNDi value
3.86
Rank in Egypt
80th of 213
Rank in Ash Sharqiyah
20th of 28

Entire Network (Aggregate)

SNDi value
3.94
Rank in Egypt
130th of 213
Rank in Ash Sharqiyah
26th of 28

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
Al-ZawamelGuangningMendi

While Guangning and Mendi both fluctuated in its street-construction patterns, Al-Zawamel built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. Looking at the full network, Guangning and Mendi both became progressively more disconnected, while Al-Zawamel grew more disconnected from 1975 through 1991-2005, then improved. Al-Zawamel and Guangning have been converging in their street-network character since 1975.