Laifeng in context: Street-network sprawl trends

Laifeng in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
LaifengHubei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Laifeng plotted against Hubei and China. The SNDi of new construction in Laifeng rose steadily, compared to Hubei which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Laifeng's incremental SNDi rose from 2.82 to 4.05 between 1991-2005 and 2006-2020. In terms of the aggregate network, Laifeng ranked 32nd out of 77 cities in Hubei and 857th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.05
Rank in China
1415th of 1843
Rank in Hubei
68th of 77

Entire Network (Aggregate)

SNDi value
2.8
Rank in China
857th of 1843
Rank in Hubei
32nd of 77

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
LaifengNadanghatTomohon

In new street additions, Laifeng built increasingly disconnected streets over time, while Nadanghat built increasingly connected streets over time and Tomohon built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Laifeng and Tomohon both became progressively more disconnected, while Nadanghat became progressively more connected.