Zhoukou in context: Street-network sprawl trends

Zhoukou in context

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
ZhoukouHenan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zhoukou plotted against Henan and China. The SNDi of new construction in Zhoukou peaked in 1991-2005, compared to Henan which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Zhoukou's incremental SNDi fell from 3.42 to 2.65 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zhoukou ranked 72nd out of 129 cities in Henan and 723rd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.65
Rank in China
623rd of 1843
Rank in Henan
75th of 129

Entire Network (Aggregate)

SNDi value
2.67
Rank in China
723rd of 1843
Rank in Henan
72nd of 129

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

What about similarly populated cities?

234567<19751976–19901991–20052006–2020SNDi of street additions
234567<19751976–19901991–20052006–2020SNDi of entire street network
ZhoukouNottinghamLipa

In new street additions, Zhoukou and Lipa both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Nottingham built increasingly disconnected streets over time. Looking at the full network, Nottingham and Lipa both became progressively more disconnected, while Zhoukou grew more disconnected from 1975 through 1991-2005, then improved. Zhoukou and Lipa have been growing further apart in their street-network character since 1975.