Wengan in context: Street-network sprawl trends

Wengan in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Wengan plotted against Guizhou and China. The SNDi of new construction in Wengan peaked in 1976-1990, compared to Guizhou which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Wengan's incremental SNDi fell from 2.38 to 1.84 between 1991-2005 and 2006-2020. In terms of the aggregate network, Wengan ranked 7th out of 41 cities in Guizhou and 296th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
1.84
Rank in China
177th of 1843
Rank in Guizhou
3rd of 41

Entire Network (Aggregate)

SNDi value
2.13
Rank in China
296th of 1843
Rank in Guizhou
7th of 41

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

What about similarly populated cities?

1.21.82.43<19751976–19901991–20052006–2020SNDi of street additions
1.21.82.43<19751976–19901991–20052006–2020SNDi of entire street network
WenganTandaltiAshoknagar

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