Xi in context: Street-network sprawl trends

Xi in context

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
XiHenan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Xi plotted against Henan and China. While Henan and China both followed a zig-zag trend with an overall increase, Xi's new street additions followed a zig-zag trend with an overall increase. Most recently, Xi's incremental SNDi rose from 1.25 to 2.43 between 1991-2005 and 2006-2020. In terms of the aggregate network, Xi ranked 39th out of 129 cities in Henan and 256th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.43
Rank in China
469th of 1843
Rank in Henan
64th of 129

Entire Network (Aggregate)

SNDi value
2.05
Rank in China
256th of 1843
Rank in Henan
39th of 129

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
XiTanjung Balai KarimunAflao

While Tanjung Balai Karimun and Aflao both built increasingly disconnected streets from 1975 through 1991-2005, then improved, Xi fluctuated in its street-construction patterns in new street additions. For the full network, Xi fluctuated in connectivity, while Tanjung Balai Karimun became progressively more disconnected and Aflao grew more disconnected from 1975 through 1991-2005, then improved.