Zaozhuang in context: Street-network sprawl trends

Zaozhuang in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zaozhuang plotted against Shandong and China. The SNDi of new construction in Zaozhuang 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, Zaozhuang's incremental SNDi fell from 3.56 to 3.32 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zaozhuang ranked 105th out of 124 cities in Shandong and 1337th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.32
Rank in China
1059th of 1843
Rank in Shandong
94th of 124

Entire Network (Aggregate)

SNDi value
3.45
Rank in China
1337th of 1843
Rank in Shandong
105th of 124

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

What about similarly populated cities?

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
ZaozhuangKatasaMito

In new street additions, Zaozhuang built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Katasa built increasingly disconnected streets over time and Mito fluctuated in its street-construction patterns. Looking at the full network, Katasa and Mito both became progressively more disconnected, while Zaozhuang grew more disconnected from 1975 through 1991-2005, then improved. Notably, Zaozhuang had a more sprawly network than Katasa in 1975 but the two have since reversed their relative ranking.