Qa`tabah in context: Street-network sprawl trends

Qa`tabah in context

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
Qa`tabahAl Dali' (Region)Yemen (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Qa`tabah plotted against Al Dali' and Yemen. The SNDi of new construction in Qa`tabah rose steadily, compared to Al Dali' which was at its lowest in 1976-1990 and Yemen which followed a zig-zag trend with an overall increase. Most recently, Qa`tabah's incremental SNDi rose from 3.81 to 4.47 between 1991-2005 and 2006-2020. In terms of the aggregate network, Qa`tabah ranked 1st out of 3 cities in Al Dali' and 22nd out of 58 in Yemen as of 2020.

New Street Additions (2006–2020)

SNDi value
4.47
Rank in Yemen
26th of 58
Rank in Al Dali'
1st of 3

Entire Network (Aggregate)

SNDi value
3.5
Rank in Yemen
22nd of 58
Rank in Al Dali'
1st of 3

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

What about similarly populated cities?

2.43.24<19751976–19901991–20052006–2020SNDi of street additions
2.43.24<19751976–19901991–20052006–2020SNDi of entire street network
Qa`tabahQishanYushu

While Qishan and Yushu both built increasingly disconnected streets from 1975 through 1976-1990, then improved, Qa`tabah built increasingly disconnected streets over time in new street additions. For the full network, Qa`tabah became progressively more disconnected, while Qishan grew more disconnected from 1975 through 1991-2005, then improved and Yushu grew more disconnected from 1975 through 1976-1990, then improved. Qa`tabah and Qishan have been growing further apart in their street-network character since 1975.