Yangkou in context: Street-network sprawl trends

Yangkou in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
YangkouJiangxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yangkou plotted against Jiangxi and China. While Jiangxi and China both followed a zig-zag trend with an overall increase, Yangkou's new street additions followed a zig-zag trend with an overall increase. Most recently, Yangkou's incremental SNDi rose from 2.99 to 3.56 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yangkou ranked 61st out of 82 cities in Jiangxi and 1148th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.56
Rank in China
1176th of 1843
Rank in Jiangxi
64th of 82

Entire Network (Aggregate)

SNDi value
3.16
Rank in China
1148th of 1843
Rank in Jiangxi
61st of 82

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

What about similarly populated cities?

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
YangkouQuy NhonSirsa

In new street additions, Yangkou and Sirsa both fluctuated in its street-construction patterns, while Quy Nhơn built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Yangkou fluctuated in connectivity, while Quy Nhơn grew more disconnected from 1975 through 1991-2005, then improved and Sirsa became progressively more disconnected. Yangkou and Quy Nhơn have been growing further apart in their street-network character since 1975.