Lianshui County in context: Street-network sprawl trends

Lianshui County in context

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
Lianshui CountyJiangsu (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lianshui County plotted against Jiangsu and China. The SNDi of new construction in Lianshui County rose steadily, compared to Jiangsu which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Lianshui County's incremental SNDi rose from 2.67 to 2.83 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lianshui County ranked 35th out of 101 cities in Jiangsu and 514th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.83
Rank in China
758th of 1843
Rank in Jiangsu
50th of 101

Entire Network (Aggregate)

SNDi value
2.41
Rank in China
514th of 1843
Rank in Jiangsu
35th of 101

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
Lianshui CountyKisiiMakeni

Lianshui County, Kisii, and Makeni all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network. Lianshui County and Kisii have been growing further apart in their street-network character since 1975.