Binchuan in context: Street-network sprawl trends

Binchuan in context

2.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
BinchuanYunnan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Binchuan plotted against Yunnan and China. The SNDi of new construction in Binchuan rose steadily, compared to Yunnan which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Binchuan's incremental SNDi rose from 2.82 to 3.61 between 1991-2005 and 2006-2020. In terms of the aggregate network, Binchuan ranked 39th out of 78 cities in Yunnan and 985th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.61
Rank in China
1196th of 1843
Rank in Yunnan
47th of 78

Entire Network (Aggregate)

SNDi value
2.95
Rank in China
985th of 1843
Rank in Yunnan
39th of 78

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

What about similarly populated cities?

01234<19751976–19901991–20052006–2020SNDi of street additions
01234<19751976–19901991–20052006–2020SNDi of entire street network
BinchuanDevadaDhoraji

In new street additions, Binchuan built increasingly disconnected streets over time, while Devada built increasingly disconnected streets from 1975 through 1976-1990, then improved and Dhoraji fluctuated in its street-construction patterns. For the full network, Binchuan became progressively more disconnected, while Devada grew more disconnected from 1975 through 1991-2005, then improved and Dhoraji fluctuated in connectivity.