Bahma in context: Street-network sprawl trends

Bahma in context

3.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
3.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
BahmaAl Jizah (Region)Egypt (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Bahma plotted against Al Jizah and Egypt. The SNDi of new construction in Bahma peaked in 1991-2005, compared to Al Jizah which followed a zig-zag trend with an overall increase and Egypt which followed a zig-zag trend with an overall increase. Most recently, Bahma's incremental SNDi fell from 5.31 to 4.66 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bahma ranked 6th out of 8 cities in Al Jizah and 153rd out of 213 in Egypt as of 2020.

New Street Additions (2006–2020)

SNDi value
4.66
Rank in Egypt
122nd of 213
Rank in Al Jizah
6th of 8

Entire Network (Aggregate)

SNDi value
4.3
Rank in Egypt
153rd of 213
Rank in Al Jizah
6th of 8

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
BahmaRubioQaryat Salah al Din

In new street additions, Bahma built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Rubio built increasingly disconnected streets over time and Qaryat Salah al Din fluctuated in its street-construction patterns. For the full network, Bahma and Rubio both became progressively more disconnected, while Qaryat Salah al Din fluctuated in connectivity. Bahma and Rubio have been converging in their street-network character since 1975.