Xinhua in context: Street-network sprawl trends

Xinhua in context

2.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
XinhuaHunan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Xinhua plotted against Hunan and China. The SNDi of new construction in Xinhua rose steadily, compared to Hunan which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Xinhua's incremental SNDi rose from 3.34 to 5.09 between 1991-2005 and 2006-2020. In terms of the aggregate network, Xinhua ranked 75th out of 89 cities in Hunan and 1521st out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
5.09
Rank in China
1653rd of 1843
Rank in Hunan
83rd of 89

Entire Network (Aggregate)

SNDi value
3.89
Rank in China
1521st of 1843
Rank in Hunan
75th of 89

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
XinhuaDuzceDurgachak

While Düzce and Durgachak both fluctuated in its street-construction patterns, Xinhua built increasingly disconnected streets over time in new street additions. For the full street network, though, all three cities follow the same trend. Xinhua and Düzce have been growing further apart in their street-network character since 1975.