Bi'r Rubak in context: Street-network sprawl trends

Bi'r Rubak in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
Bi'r Rubak`Adan (Region)Yemen (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Bi'r Rubak plotted against `Adan and Yemen. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Bi'r Rubak's incremental SNDi rose from 2.12 to 2.4 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bi'r Rubak ranked 1st out of 2 cities in `Adan and 3rd out of 58 in Yemen as of 2020.

New Street Additions (2006–2020)

SNDi value
2.4
Rank in Yemen
4th of 58
Rank in `Adan
1st of 2

Entire Network (Aggregate)

SNDi value
2.17
Rank in Yemen
3rd of 58
Rank in `Adan
1st of 2

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

What about similarly populated cities?

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
Bi'r RubakPortsmouthZahedan

In new street additions, Bi'r Rubak fluctuated in its street-construction patterns, while Portsmouth built increasingly disconnected streets from 1975 through 1991-2005, then improved and Zahedan built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Bi'r Rubak fluctuated in connectivity, while Portsmouth grew more disconnected from 1975 through 1991-2005, then improved and Zahedan became progressively more connected.