Sa`dah in context: Street-network sprawl trends

Sa`dah in context

33.544.5<19751976–19901991–20052006–2020SNDi of street additions
33.544.5<19751976–19901991–20052006–2020SNDi of entire street network
Sa`dahYemen (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sa`dah plotted against Yemen. Both Sa`dah and Yemen follow the same trend. Most recently, Sa`dah's incremental SNDi rose from 3.43 to 3.54 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sa`dah ranked 24th out of 58 in Yemen as of 2020.

New Street Additions (2006–2020)

SNDi value
3.54
Rank in Yemen
15th of 58

Entire Network (Aggregate)

SNDi value
3.54
Rank in Yemen
24th of 58

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

What about similarly populated cities?

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
Sa`dahTuz KhormatoMatagalpa

In new street additions, Sa`dah fluctuated in its street-construction patterns, while Tuz Khormato built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and Matagalpa built increasingly disconnected streets over time. For the full network, Sa`dah fluctuated in connectivity, while Tuz Khormato became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Matagalpa became progressively more disconnected. Sa`dah and Tuz Khormato have been growing further apart in their street-network character since 1975.