Nehe in context: Street-network sprawl trends

Nehe 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
NeheHeilongjiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Nehe plotted against Heilongjiang and China. While Heilongjiang and China both followed a zig-zag trend with an overall increase, Nehe's new street additions followed a zig-zag trend with an overall increase. Most recently, Nehe's incremental SNDi rose from 2.93 to 3.77 between 1991-2005 and 2006-2020. In terms of the aggregate network, Nehe ranked 51st out of 67 cities in Heilongjiang and 1025th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.77
Rank in China
1295th of 1843
Rank in Heilongjiang
44th of 67

Entire Network (Aggregate)

SNDi value
2.99
Rank in China
1025th of 1843
Rank in Heilongjiang
51st of 67

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
NeheXiangyunJianyang

In new street additions, Nehe and Xiangyun both fluctuated in its street-construction patterns, while Jianyang built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Nehe and Xiangyun both became progressively more disconnected, while Jianyang fluctuated in connectivity. Nehe and Xiangyun have been converging in their street-network character since 1975.