Chaohu in context: Street-network sprawl trends

Chaohu in context

33.544.5<19751976–19901991–20052006–2020SNDi of street additions
33.544.5<19751976–19901991–20052006–2020SNDi of entire street network
ChaohuAnhui (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Chaohu plotted against Anhui and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Chaohu's incremental SNDi rose from 2.71 to 3.06 between 1991-2005 and 2006-2020. In terms of the aggregate network, Chaohu ranked 51st out of 74 cities in Anhui and 998th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.06
Rank in China
926th of 1843
Rank in Anhui
49th of 74

Entire Network (Aggregate)

SNDi value
2.97
Rank in China
998th of 1843
Rank in Anhui
51st of 74

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

What about similarly populated cities?

2.533.54<19751976–19901991–20052006–2020SNDi of street additions
2.533.54<19751976–19901991–20052006–2020SNDi of entire street network
ChaohuYongchengSanmenxia

Chaohu, Yongcheng, and Sanmenxia all fluctuated in its street-construction patterns in new street construction. For the full network, Chaohu and Yongcheng both grew more disconnected from 1975 through 1976-1990, then improved, while Sanmenxia fluctuated in connectivity. Chaohu and Sanmenxia have been converging in their street-network character since 1975.