Zhapu in context: Street-network sprawl trends

Zhapu in context

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
ZhapuZhejiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zhapu plotted against Zhejiang and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Zhapu's incremental SNDi rose from 2.35 to 2.75 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zhapu ranked 57th out of 116 cities in Zhejiang and 803rd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.75
Rank in China
695th of 1843
Rank in Zhejiang
46th of 116

Entire Network (Aggregate)

SNDi value
2.76
Rank in China
803rd of 1843
Rank in Zhejiang
57th of 116

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
ZhapuHaderoWarwick

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