Jiangyan in context: Street-network sprawl trends
Jiangyan in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Jiangyan plotted against Jiangsu and China. The SNDi of new construction in Jiangyan rose steadily, compared to Jiangsu which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Jiangyan's incremental SNDi rose from 3.77 to 3.88 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jiangyan ranked 80th out of 101 cities in Jiangsu and 1357th out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 3.88
- Rank in China
- 1345th of 1843
- Rank in Jiangsu
- 85th of 101
Entire Network (Aggregate)
- SNDi value
- 3.48
- Rank in China
- 1357th of 1843
- Rank in Jiangsu
- 80th of 101
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Jiangyan built increasingly disconnected streets over time, while Haeju built increasingly disconnected streets from 1975 through 1976-1990, then improved and Bosaso fluctuated in its street-construction patterns. For the full network, Jiangyan and Bosaso both became progressively more disconnected, while Haeju grew more disconnected from 1975 through 1976-1990, then improved. Jiangyan and Haeju have been converging in their street-network character since 1975.