Xinhe in context: Street-network sprawl trends

Xinhe in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
XinheZhejiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Xinhe plotted against Zhejiang and China. The SNDi of new construction in Xinhe peaked in 1991-2005, 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, Xinhe's incremental SNDi fell from 3.36 to 1.34 between 1991-2005 and 2006-2020. In terms of the aggregate network, Xinhe ranked 72nd out of 116 cities in Zhejiang and 1177th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
1.34
Rank in China
41st of 1843
Rank in Zhejiang
2nd of 116

Entire Network (Aggregate)

SNDi value
3.19
Rank in China
1177th of 1843
Rank in Zhejiang
72nd of 116

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
XinhePengshanNandura

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