Dushanzi in context: Street-network sprawl trends

Dushanzi in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
DushanziXinjiang Uygur (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dushanzi plotted against Xinjiang Uygur and China. The SNDi of new construction in Dushanzi peaked in 1976-1990, compared to Xinjiang Uygur which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Dushanzi's incremental SNDi fell from 1.68 to 1.52 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dushanzi ranked 2nd out of 31 cities in Xinjiang Uygur and 106th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
1.52
Rank in China
72nd of 1843
Rank in Xinjiang Uygur
3rd of 31

Entire Network (Aggregate)

SNDi value
1.73
Rank in China
106th of 1843
Rank in Xinjiang Uygur
2nd of 31

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

What about similarly populated cities?

4812<19751976–19901991–20052006–2020SNDi of street additions
4812<19751976–19901991–20052006–2020SNDi of entire street network
DushanziOkoroeteIbillo

In new street additions, Dushanzi built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Okoroete built increasingly disconnected streets from 1975 through 1991-2005, then improved and Ibillo built increasingly disconnected streets over time. Looking at the full network, Okoroete and Ibillo both became progressively more disconnected, while Dushanzi grew more disconnected from 1975 through 1976-1990, then improved. Notably, Dushanzi had a more sprawly network than Ibillo in 1975 but the two have since reversed their relative ranking.