Wangcang County in context: Street-network sprawl trends

Wangcang County in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
Wangcang CountySichuan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Wangcang County plotted against Sichuan and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Wangcang County's incremental SNDi rose from 2.49 to 2.72 between 1991-2005 and 2006-2020. In terms of the aggregate network, Wangcang County ranked 24th out of 98 cities in Sichuan and 586th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.72
Rank in China
671st of 1843
Rank in Sichuan
28th of 98

Entire Network (Aggregate)

SNDi value
2.5
Rank in China
586th of 1843
Rank in Sichuan
24th of 98

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
Wangcang CountyErbaaTelemaco Borba

In new street additions, Wangcang County fluctuated in its street-construction patterns, while Erbaa built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and Telêmaco Borba built increasingly disconnected streets over time. For the full network, Wangcang County and Telêmaco Borba both became progressively more disconnected, while Erbaa became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Wangcang County had a more connected network than Erbaa in 1975 but the two have since reversed their relative ranking.