Huixian in context: Street-network sprawl trends

Huixian in context

2.533.544.5<19751976–19901991–20052006–2020SNDi of street additions
2.533.544.5<19751976–19901991–20052006–2020SNDi of entire street network
HuixianHenan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Huixian plotted against Henan and China. The SNDi of new construction in Huixian rose steadily, compared to Henan which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Huixian's incremental SNDi rose from 3.58 to 3.8 between 1991-2005 and 2006-2020. In terms of the aggregate network, Huixian ranked 109th out of 129 cities in Henan and 1184th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.8
Rank in China
1309th of 1843
Rank in Henan
113th of 129

Entire Network (Aggregate)

SNDi value
3.21
Rank in China
1184th of 1843
Rank in Henan
109th of 129

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

What about similarly populated cities?

34567<19751976–19901991–20052006–2020SNDi of street additions
34567<19751976–19901991–20052006–2020SNDi of entire street network
HuixianKersanaChichawatni

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