Ezhou in context: Street-network sprawl trends

Ezhou in context

3.244.85.6<19751976–19901991–20052006–2020SNDi of street additions
3.244.85.6<19751976–19901991–20052006–2020SNDi of entire street network
EzhouHubei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ezhou plotted against Hubei and China. The SNDi of new construction in Ezhou peaked in 1976-1990, compared to Hubei which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Ezhou's incremental SNDi fell from 3.51 to 3.19 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ezhou ranked 69th out of 77 cities in Hubei and 1530th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.19
Rank in China
1000th of 1843
Rank in Hubei
43rd of 77

Entire Network (Aggregate)

SNDi value
3.92
Rank in China
1530th of 1843
Rank in Hubei
69th of 77

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
EzhouDengzhouYola

While Dengzhou and Yola both fluctuated in its street-construction patterns, Ezhou built increasingly disconnected streets from 1975 through 1976-1990, then improved in new street additions. Looking at the full network, Dengzhou and Yola both became progressively more disconnected, while Ezhou grew more disconnected from 1975 through 1976-1990, then improved. Ezhou and Dengzhou have been converging in their street-network character since 1975.