Deyang in context: Street-network sprawl trends

Deyang 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
DeyangSichuan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Deyang plotted against Sichuan and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Deyang's incremental SNDi rose from 2.02 to 2.47 between 1991-2005 and 2006-2020. In terms of the aggregate network, Deyang ranked 19th out of 98 cities in Sichuan and 453rd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.47
Rank in China
500th of 1843
Rank in Sichuan
18th of 98

Entire Network (Aggregate)

SNDi value
2.32
Rank in China
453rd of 1843
Rank in Sichuan
19th of 98

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
DeyangCilegonUberlandia

In new street additions, Deyang and Cilegon both fluctuated in its street-construction patterns, while Uberlândia built increasingly disconnected streets over time. Looking at the full network, Cilegon and Uberlândia both became progressively more disconnected, while Deyang fluctuated in connectivity. Deyang and Uberlândia have been converging in their street-network character since 1975.