Nankou in context: Street-network sprawl trends

Nankou in context

345678<19751976–19901991–20052006–2020SNDi of street additions
345678<19751976–19901991–20052006–2020SNDi of entire street network
NankouBeijing (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Nankou plotted against Beijing and China. The SNDi of new construction in Nankou peaked in 1991-2005, compared to Beijing which rose steadily and China which followed a zig-zag trend with an overall increase. Most recently, Nankou's incremental SNDi fell from 8.0 to 7.33 between 1991-2005 and 2006-2020. In terms of the aggregate network, Nankou ranked 10th out of 10 cities in Beijing and 1822nd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
7.33
Rank in China
1798th of 1843
Rank in Beijing
10th of 10

Entire Network (Aggregate)

SNDi value
7.17
Rank in China
1822nd of 1843
Rank in Beijing
10th of 10

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

What about similarly populated cities?

369<19751976–19901991–20052006–2020SNDi of street additions
369<19751976–19901991–20052006–2020SNDi of entire street network
NankouNew FribourgGauriganj

While New Fribourg and Gauriganj both built increasingly disconnected streets over time, Nankou built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. Looking at the full network, New Fribourg and Gauriganj both became progressively more disconnected, while Nankou grew more disconnected from 1975 through 1991-2005, then improved.