Lanling in context: Street-network sprawl trends

Lanling in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
LanlingShandong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lanling plotted against Shandong and China. While Shandong and China both followed a zig-zag trend with an overall increase, Lanling's new street additions followed a zig-zag trend with an overall increase. Most recently, Lanling's incremental SNDi rose from 1.98 to 2.64 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lanling ranked 63rd out of 124 cities in Shandong and 432nd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.64
Rank in China
616th of 1843
Rank in Shandong
65th of 124

Entire Network (Aggregate)

SNDi value
2.3
Rank in China
432nd of 1843
Rank in Shandong
63rd of 124

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

What about similarly populated cities?

1.82.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
LanlingShenmuXingyi

In new street additions, Lanling and Shenmu both fluctuated in its street-construction patterns, while Xingyi built increasingly disconnected streets over time. For the full network, Lanling and Shenmu both fluctuated in connectivity, while Xingyi became progressively more disconnected. Lanling and Shenmu have been growing further apart in their street-network character since 1975.