Ruichang in context: Street-network sprawl trends

Ruichang in context

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
RuichangJiangxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ruichang plotted against Jiangxi and China. The SNDi of new construction in Ruichang peaked in 1976-1990, compared to Jiangxi which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Ruichang's incremental SNDi fell from 1.78 to 1.72 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ruichang ranked 1st out of 82 cities in Jiangxi and 119th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
1.72
Rank in China
125th of 1843
Rank in Jiangxi
6th of 82

Entire Network (Aggregate)

SNDi value
1.77
Rank in China
119th of 1843
Rank in Jiangxi
1st of 82

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

What about similarly populated cities?

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
RuichangHuangqiaoJi'an County

In new street additions, Ruichang built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Huangqiao built increasingly disconnected streets from 1975 through 1991-2005, then improved and Ji'an County built increasingly disconnected streets over time. For the full network, Ruichang and Huangqiao both grew more disconnected from 1975 through 1991-2005, then improved, while Ji'an County became progressively more disconnected. Ruichang and Huangqiao have been growing further apart in their street-network character since 1975.