Yangtian in context: Street-network sprawl trends

Yangtian in context

2.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
YangtianFujian (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yangtian plotted against Fujian and China. The SNDi of new construction in Yangtian followed a zig-zag trend, compared to Fujian which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Yangtian's incremental SNDi fell from 2.97 to 2.85 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yangtian ranked 30th out of 75 cities in Fujian and 980th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.85
Rank in China
777th of 1843
Rank in Fujian
18th of 75

Entire Network (Aggregate)

SNDi value
2.94
Rank in China
980th of 1843
Rank in Fujian
30th of 75

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

What about similarly populated cities?

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
YangtianSuideJainagar

In new street additions, Yangtian fluctuated in its street-construction patterns, while Suide fluctuated in its street-construction patterns and Jainagar built increasingly disconnected streets from 1975 through 1991-2005, then improved. Looking at the full network, Suide and Jainagar both became progressively more disconnected, while Yangtian fluctuated in connectivity.