Yongchuan in context: Street-network sprawl trends

Yongchuan in context

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
YongchuanChongqing (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yongchuan plotted against Chongqing and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Yongchuan's incremental SNDi rose from 2.39 to 2.52 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yongchuan ranked 11th out of 47 cities in Chongqing and 605th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.52
Rank in China
530th of 1843
Rank in Chongqing
7th of 47

Entire Network (Aggregate)

SNDi value
2.52
Rank in China
605th of 1843
Rank in Chongqing
11th of 47

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

What about similarly populated cities?

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
YongchuanLeshanSamsun

In new street additions, Yongchuan fluctuated in its street-construction patterns, while Leshan built increasingly disconnected streets from 1975 through 1976-1990, then improved and Samsun built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Yongchuan fluctuated in connectivity, while Leshan grew more disconnected from 1975 through 1976-1990, then improved and Samsun became progressively more disconnected. Yongchuan and Leshan have been converging in their street-network character since 1975.