Mishan in context: Street-network sprawl trends

Mishan in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
MishanHeilongjiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Mishan plotted against Heilongjiang and China. While Heilongjiang and China both followed a zig-zag trend with an overall increase, Mishan's new street additions followed a zig-zag trend with an overall increase. Most recently, Mishan's incremental SNDi rose from 2.94 to 4.3 between 1991-2005 and 2006-2020. In terms of the aggregate network, Mishan ranked 24th out of 67 cities in Heilongjiang and 331st out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.3
Rank in China
1485th of 1843
Rank in Heilongjiang
56th of 67

Entire Network (Aggregate)

SNDi value
2.17
Rank in China
331st of 1843
Rank in Heilongjiang
24th of 67

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

What about similarly populated cities?

246810<19751976–19901991–20052006–2020SNDi of street additions
246810<19751976–19901991–20052006–2020SNDi of entire street network
MishanDirCangxi County

In new street additions, Mishan and Cangxi County both fluctuated in its street-construction patterns, while Dir built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Mishan and Dir have been growing further apart in their street-network character since 1975.