Youxi in context: Street-network sprawl trends

Youxi in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
YouxiFujian (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Youxi plotted against Fujian and China. The SNDi of new construction in Youxi was at its lowest in 1976-1990, compared to Fujian which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Youxi's incremental SNDi rose from 2.63 to 3.33 between 1991-2005 and 2006-2020. In terms of the aggregate network, Youxi ranked 19th out of 75 cities in Fujian and 702nd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.33
Rank in China
1064th of 1843
Rank in Fujian
32nd of 75

Entire Network (Aggregate)

SNDi value
2.65
Rank in China
702nd of 1843
Rank in Fujian
19th of 75

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

What about similarly populated cities?

1.82.43<19751976–19901991–20052006–2020SNDi of street additions
1.82.43<19751976–19901991–20052006–2020SNDi of entire street network
YouxiDolores Hidalgo Cuna De La Independencia NacionalHa Tinh

In new street additions, Youxi and Hà Tĩnh both built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Dolores Hidalgo Cuna De La Independencia Nacional built increasingly disconnected streets over time. For the full network, Youxi and Hà Tĩnh both became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Dolores Hidalgo Cuna De La Independencia Nacional became progressively more disconnected. Youxi and Dolores Hidalgo Cuna De La Independencia Nacional have been converging in their street-network character since 1975.