Yingjing in context: Street-network sprawl trends

Yingjing in context

3.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
3.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
YingjingSichuan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yingjing plotted against Sichuan and China. The SNDi of new construction in Yingjing peaked in 1991-2005, compared to Sichuan which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Yingjing's incremental SNDi fell from 5.3 to 4.5 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yingjing ranked 84th out of 98 cities in Sichuan and 1689th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.5
Rank in China
1532nd of 1843
Rank in Sichuan
78th of 98

Entire Network (Aggregate)

SNDi value
4.71
Rank in China
1689th of 1843
Rank in Sichuan
84th of 98

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
YingjingChengamKladno

In new street additions, Yingjing built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Chengam fluctuated in its street-construction patterns and Kladno built increasingly disconnected streets over time. For the full network, Yingjing grew more disconnected from 1975 through 1991-2005, then improved, while Chengam fluctuated in connectivity and Kladno became progressively more disconnected. Notably, Yingjing had a more connected network than Chengam in 1975 but the two have since reversed their relative ranking.