Dengfeng in context: Street-network sprawl trends

Dengfeng in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
DengfengHenan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dengfeng plotted against Henan and China. The SNDi of new construction in Dengfeng rose steadily, compared to Henan which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Dengfeng's incremental SNDi rose from 2.33 to 2.94 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dengfeng ranked 48th out of 129 cities in Henan and 341st out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.94
Rank in China
844th of 1843
Rank in Henan
90th of 129

Entire Network (Aggregate)

SNDi value
2.18
Rank in China
341st of 1843
Rank in Henan
48th of 129

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
DengfengYongnianBanyuwangi

In new street additions, Dengfeng and Banyuwangi both built increasingly disconnected streets over time, while Yongnian built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Dengfeng and Banyuwangi both became progressively more disconnected, while Yongnian grew more disconnected from 1975 through 1991-2005, then improved. Dengfeng and Yongnian have been converging in their street-network character since 1975.