Huaiji in context: Street-network sprawl trends

Huaiji in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
HuaijiGuangdong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Huaiji plotted against Guangdong and China. The SNDi of new construction in Huaiji rose steadily, compared to Guangdong which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Huaiji's incremental SNDi rose from 2.46 to 2.8 between 1991-2005 and 2006-2020. In terms of the aggregate network, Huaiji ranked 22nd out of 133 cities in Guangdong and 455th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.8
Rank in China
742nd of 1843
Rank in Guangdong
28th of 133

Entire Network (Aggregate)

SNDi value
2.33
Rank in China
455th of 1843
Rank in Guangdong
22nd of 133

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

What about similarly populated cities?

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
HuaijiLuxembourgFada N'Gourma

In new street additions, Huaiji and Luxembourg both built increasingly disconnected streets over time, while Fada N'Gourma fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Notably, Huaiji had a more connected network than Luxembourg in 1975 but the two have since reversed their relative ranking.