Xidian in context: Street-network sprawl trends

Xidian in context

33.544.5<19751976–19901991–20052006–2020SNDi of street additions
33.544.5<19751976–19901991–20052006–2020SNDi of entire street network
XidianZhejiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Xidian plotted against Zhejiang and China. The SNDi of new construction in Xidian followed a zig-zag trend with an overall decrease, compared to Zhejiang which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Xidian's incremental SNDi fell from 3.42 to 2.8 between 1991-2005 and 2006-2020. In terms of the aggregate network, Xidian ranked 75th out of 116 cities in Zhejiang and 1255th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.8
Rank in China
743rd of 1843
Rank in Zhejiang
48th of 116

Entire Network (Aggregate)

SNDi value
3.31
Rank in China
1255th of 1843
Rank in Zhejiang
75th of 116

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

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
XidianRionegroEl M'Ghair

In new street additions, Xidian and El M'Ghair both fluctuated in its street-construction patterns, while Rionegro fluctuated in its street-construction patterns. For the full network, Xidian and El M'Ghair both became progressively more connected, while Rionegro fluctuated in connectivity. Xidian and Rionegro have been converging in their street-network character since 1975.