Yuhu in context: Street-network sprawl trends

Yuhu in context

3.244.85.6<19751976–19901991–20052006–2020SNDi of street additions
3.244.85.6<19751976–19901991–20052006–2020SNDi of entire street network
YuhuHunan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yuhu plotted against Hunan and China. The SNDi of new construction in Yuhu peaked in 1976-1990, compared to Hunan which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Yuhu's incremental SNDi fell from 5.53 to 3.61 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yuhu ranked 85th out of 89 cities in Hunan and 1701st out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.61
Rank in China
1195th of 1843
Rank in Hunan
64th of 89

Entire Network (Aggregate)

SNDi value
4.81
Rank in China
1701st of 1843
Rank in Hunan
85th of 89

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
YuhuVladivostokSumgayit

In new street additions, Yuhu built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Vladivostok built increasingly disconnected streets over time and Sumgayit built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Yuhu and Sumgayit both grew more disconnected from 1975 through 1991-2005, then improved, while Vladivostok became progressively more disconnected. Notably, Yuhu had a more sprawly network than Sumgayit in 1975 but the two have since reversed their relative ranking.