Chongzhou in context: Street-network sprawl trends

Chongzhou in context

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
ChongzhouSichuan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Chongzhou plotted against Sichuan and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Chongzhou's incremental SNDi rose from 2.17 to 2.25 between 1991-2005 and 2006-2020. In terms of the aggregate network, Chongzhou ranked 11th out of 98 cities in Sichuan and 315th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.25
Rank in China
366th of 1843
Rank in Sichuan
11th of 98

Entire Network (Aggregate)

SNDi value
2.15
Rank in China
315th of 1843
Rank in Sichuan
11th 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
ChongzhouLaibinPardis

In new street additions, Chongzhou fluctuated in its street-construction patterns, while Laibin built increasingly disconnected streets from 1975 through 1976-1990, then improved and Pardis built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Chongzhou became progressively more disconnected, while Laibin grew more disconnected from 1975 through 1976-1990, then improved and Pardis became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Chongzhou and Laibin have been converging in their street-network character since 1975.