Girga in context: Street-network sprawl trends

Girga in context

3.244.85.6<19751976–19901991–20052006–2020SNDi of street additions
3.244.85.6<19751976–19901991–20052006–2020SNDi of entire street network
GirgaSuhaj (Region)Egypt (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Girga plotted against Suhaj and Egypt. The SNDi of new construction in Girga rose steadily, compared to Suhaj which peaked in 1991-2005 and Egypt which followed a zig-zag trend with an overall increase. Most recently, Girga's incremental SNDi rose from 4.69 to 5.82 between 1991-2005 and 2006-2020. In terms of the aggregate network, Girga ranked 4th out of 13 cities in Suhaj and 151st out of 213 in Egypt as of 2020.

New Street Additions (2006–2020)

SNDi value
5.82
Rank in Egypt
166th of 213
Rank in Suhaj
6th of 13

Entire Network (Aggregate)

SNDi value
4.28
Rank in Egypt
151st of 213
Rank in Suhaj
4th of 13

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
GirgaIasiWazirabad

In new street additions, Girga and Iași both built increasingly disconnected streets over time, while Wazirabad built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Girga and Iași have been converging in their street-network character since 1975.