Dongtou in context: Street-network sprawl trends

Dongtou in context

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
DongtouZhejiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dongtou plotted against Zhejiang and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Dongtou's incremental SNDi rose from 2.32 to 2.6 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dongtou ranked 59th out of 116 cities in Zhejiang and 869th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.6
Rank in China
589th of 1843
Rank in Zhejiang
37th of 116

Entire Network (Aggregate)

SNDi value
2.82
Rank in China
869th of 1843
Rank in Zhejiang
59th of 116

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
DongtouOrerokpeKirklareli

In new street additions, Dongtou and Kırklareli both fluctuated in its street-construction patterns, while Orerokpe built increasingly disconnected streets over time. Looking at the full network, Orerokpe and Kırklareli both became progressively more disconnected, while Dongtou grew more disconnected from 1975 through 1976-1990, then improved. Dongtou and Orerokpe have been growing further apart in their street-network character since 1975.