Dezhou in context: Street-network sprawl trends

Dezhou in context

33.544.5<19751976–19901991–20052006–2020SNDi of street additions
33.544.5<19751976–19901991–20052006–2020SNDi of entire street network
DezhouShandong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dezhou plotted against Shandong and China. The SNDi of new construction in Dezhou peaked in 1976-1990, compared to Shandong which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Dezhou's incremental SNDi fell from 3.27 to 2.93 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dezhou ranked 100th out of 124 cities in Shandong and 1189th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.93
Rank in China
829th of 1843
Rank in Shandong
80th of 124

Entire Network (Aggregate)

SNDi value
3.21
Rank in China
1189th of 1843
Rank in Shandong
100th of 124

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

What about similarly populated cities?

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
DezhouYaroslavlWangjiangjing

In new street additions, Dezhou built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Yaroslavl fluctuated in its street-construction patterns and Wangjiangjing built increasingly disconnected streets over time. Looking at the full network, Yaroslavl and Wangjiangjing both became progressively more disconnected, while Dezhou grew more disconnected from 1975 through 1976-1990, then improved. Notably, Dezhou had a more sprawly network than Wangjiangjing in 1975 but the two have since reversed their relative ranking.