Dongcun in context: Street-network sprawl trends

Dongcun in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dongcun plotted against Shandong and China. The SNDi of new construction in Dongcun 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, Dongcun's incremental SNDi fell from 3.28 to 2.67 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dongcun ranked 70th out of 124 cities in Shandong and 570th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.67
Rank in China
641st of 1843
Rank in Shandong
67th of 124

Entire Network (Aggregate)

SNDi value
2.49
Rank in China
570th of 1843
Rank in Shandong
70th of 124

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

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
DongcunGaochunCao Lanh

In new street additions, Dongcun built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Gaochun built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns and Cao Lãnh built increasingly disconnected streets over time. For the full network, Dongcun and Cao Lãnh both became progressively more disconnected, while Gaochun became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Notably, Dongcun had a more connected network than Gaochun in 1975 but the two have since reversed their relative ranking.