Dongyang in context: Street-network sprawl trends

Dongyang in context

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
DongyangZhejiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dongyang plotted against Zhejiang and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Dongyang's incremental SNDi rose from 2.23 to 3.59 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dongyang ranked 55th out of 116 cities in Zhejiang and 773rd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.59
Rank in China
1186th of 1843
Rank in Zhejiang
75th of 116

Entire Network (Aggregate)

SNDi value
2.72
Rank in China
773rd of 1843
Rank in Zhejiang
55th of 116

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

What about similarly populated cities?

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
DongyangFaqousTiruvannamalai

In new street additions, Dongyang fluctuated in its street-construction patterns, while Faqous built increasingly disconnected streets over time and Tiruvannamalai built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Dongyang and Faqous both became progressively more disconnected, while Tiruvannamalai became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Dongyang and Faqous have been converging in their street-network character since 1975.