Haifeng in context: Street-network sprawl trends

Haifeng 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
HaifengGuangdong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Haifeng plotted against Guangdong and China. The SNDi of new construction in Haifeng 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, Haifeng's incremental SNDi rose from 2.71 to 3.66 between 1991-2005 and 2006-2020. In terms of the aggregate network, Haifeng ranked 51st out of 133 cities in Guangdong and 949th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.66
Rank in China
1229th of 1843
Rank in Guangdong
63rd of 133

Entire Network (Aggregate)

SNDi value
2.91
Rank in China
949th of 1843
Rank in Guangdong
51st of 133

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

What about similarly populated cities?

2.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
HaifengHaimenTamkuhi Raj

In new street additions, Haifeng built increasingly disconnected streets over time, while Haimen built increasingly disconnected streets from 1975 through 1991-2005, then improved and Tamkuhi Raj built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Haifeng became progressively more disconnected, while Haimen grew more disconnected from 1975 through 1991-2005, then improved and Tamkuhi Raj became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Haifeng and Tamkuhi Raj have been converging in their street-network character since 1975.