Zhanhuaqu in context: Street-network sprawl trends

Zhanhuaqu in context

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
ZhanhuaquShandong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zhanhuaqu plotted against Shandong and China. The SNDi of new construction in Zhanhuaqu peaked in 1991-2005, compared to Shandong which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Zhanhuaqu's incremental SNDi fell from 1.3 to 1.22 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zhanhuaqu ranked 3rd out of 124 cities in Shandong and 12th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
1.22
Rank in China
29th of 1843
Rank in Shandong
3rd of 124

Entire Network (Aggregate)

SNDi value
1.25
Rank in China
12th of 1843
Rank in Shandong
3rd of 124

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

What about similarly populated cities?

1.62.43.2<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.2<19751976–19901991–20052006–2020SNDi of entire street network
ZhanhuaquQuipungoWels

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