Yunhe County in context: Street-network sprawl trends

Yunhe County in context

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
Yunhe CountyZhejiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yunhe County plotted against Zhejiang and China. The SNDi of new construction in Yunhe County peaked in 1976-1990, compared to Zhejiang which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Yunhe County's incremental SNDi fell from 2.76 to 2.43 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yunhe County ranked 53rd out of 116 cities in Zhejiang and 764th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.43
Rank in China
471st of 1843
Rank in Zhejiang
30th of 116

Entire Network (Aggregate)

SNDi value
2.71
Rank in China
764th of 1843
Rank in Zhejiang
53rd of 116

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
Yunhe CountyTillaberiBasirpur

In new street additions, Yunhe County and Tillabéri both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Basirpur fluctuated in its street-construction patterns. For the full network, Yunhe County and Tillabéri both grew more disconnected from 1975 through 1976-1990, then improved, while Basirpur fluctuated in connectivity.