Yiwu in context: Street-network sprawl trends
Yiwu in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yiwu plotted against Zhejiang and China. The SNDi of new construction in Yiwu rose steadily, compared to Zhejiang which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Yiwu's incremental SNDi rose from 2.01 to 2.13 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yiwu ranked 12th out of 116 cities in Zhejiang and 243rd out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 2.13
- Rank in China
- 307th of 1843
- Rank in Zhejiang
- 13th of 116
Entire Network (Aggregate)
- SNDi value
- 2.02
- Rank in China
- 243rd of 1843
- Rank in Zhejiang
- 12th of 116
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Yiwu built increasingly disconnected streets over time, while Mersin fluctuated in its street-construction patterns and Kavar built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Yiwu and Mersin both became progressively more disconnected, while Kavar grew more disconnected from 1975 through 1976-1990, then improved. Yiwu and Mersin have been growing further apart in their street-network character since 1975.