Tanta in context: Street-network sprawl trends

Tanta in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
TantaAl Gharbiyah (Region)Egypt (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tanta plotted against Al Gharbiyah and Egypt. The SNDi of new construction in Tanta rose steadily, compared to Al Gharbiyah which rose steadily and Egypt which followed a zig-zag trend with an overall increase. Most recently, Tanta's incremental SNDi rose from 3.27 to 3.42 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tanta ranked 4th out of 13 cities in Al Gharbiyah and 33rd out of 213 in Egypt as of 2020.

New Street Additions (2006–2020)

SNDi value
3.42
Rank in Egypt
57th of 213
Rank in Al Gharbiyah
1st of 13

Entire Network (Aggregate)

SNDi value
2.41
Rank in Egypt
33rd of 213
Rank in Al Gharbiyah
4th of 13

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

What about similarly populated cities?

2.433.6<19751976–19901991–20052006–2020SNDi of street additions
2.433.6<19751976–19901991–20052006–2020SNDi of entire street network
TantaKayseriSamarqand

In new street additions, Tanta built increasingly disconnected streets over time, while Kayseri built increasingly connected streets over time and Samarqand built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Tanta and Samarqand both became progressively more disconnected, while Kayseri became progressively more connected. Tanta and Kayseri have been converging in their street-network character since 1975.