Danjiangkou in context: Street-network sprawl trends

Danjiangkou in context

2.433.64.24.8<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.24.8<19751976–19901991–20052006–2020SNDi of entire street network
DanjiangkouHubei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Danjiangkou plotted against Hubei and China. While Hubei and China both followed a zig-zag trend with an overall increase, Danjiangkou's new street additions followed a zig-zag trend with an overall increase. Most recently, Danjiangkou's incremental SNDi rose from 3.67 to 3.99 between 1991-2005 and 2006-2020. In terms of the aggregate network, Danjiangkou ranked 46th out of 77 cities in Hubei and 1077th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.99
Rank in China
1397th of 1843
Rank in Hubei
67th of 77

Entire Network (Aggregate)

SNDi value
3.06
Rank in China
1077th of 1843
Rank in Hubei
46th of 77

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

What about similarly populated cities?

2.433.64.24.8<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.24.8<19751976–19901991–20052006–2020SNDi of entire street network
DanjiangkouYorkEl Puente

While York and El Puente both built increasingly disconnected streets from 1975 through 1976-1990, then improved, Danjiangkou fluctuated in its street-construction patterns in new street additions. For the full network, Danjiangkou became progressively more disconnected, while York grew more disconnected from 1975 through 1991-2005, then improved and El Puente grew more disconnected from 1975 through 1976-1990, then improved. Danjiangkou and York have been converging in their street-network character since 1975.