Ji'an County in context: Street-network sprawl trends
Ji'an County in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ji'an County plotted against Jiangxi and China. The SNDi of new construction in Ji'an County rose steadily, compared to Jiangxi which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Ji'an County's incremental SNDi rose from 2.22 to 2.82 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ji'an County ranked 19th out of 82 cities in Jiangxi and 473rd out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 2.82
- Rank in China
- 753rd of 1843
- Rank in Jiangxi
- 40th of 82
Entire Network (Aggregate)
- SNDi value
- 2.35
- Rank in China
- 473rd of 1843
- Rank in Jiangxi
- 19th of 82
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Ji'an County and San Carlos both built increasingly disconnected streets over time, while Ruichang built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Ji'an County and San Carlos both became progressively more disconnected, while Ruichang grew more disconnected from 1975 through 1991-2005, then improved. Ji'an County and San Carlos have been growing further apart in their street-network character since 1975.