Chenzhou in context: Street-network sprawl trends

Chenzhou in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
ChenzhouHunan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Chenzhou plotted against Hunan and China. While Hunan and China both followed a zig-zag trend with an overall increase, Chenzhou's new street additions followed a zig-zag trend with an overall increase. Most recently, Chenzhou's incremental SNDi rose from 2.91 to 3.81 between 1991-2005 and 2006-2020. In terms of the aggregate network, Chenzhou ranked 48th out of 89 cities in Hunan and 1044th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.81
Rank in China
1311th of 1843
Rank in Hunan
68th of 89

Entire Network (Aggregate)

SNDi value
3.02
Rank in China
1044th of 1843
Rank in Hunan
48th of 89

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

What about similarly populated cities?

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
ChenzhouCheonan-siFuyang

Chenzhou, Cheonan-si, and Fuyang all fluctuated in its street-construction patterns in new street construction. For the full network, Chenzhou and Cheonan-si both became progressively more disconnected, while Fuyang fluctuated in connectivity.