Xinglong in context: Street-network sprawl trends

Xinglong in context

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
XinglongHeilongjiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Xinglong plotted against Heilongjiang and China. The SNDi of new construction in Xinglong peaked in 1991-2005, compared to Heilongjiang which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Xinglong's incremental SNDi fell from 3.05 to 2.33 between 1991-2005 and 2006-2020. In terms of the aggregate network, Xinglong ranked 21st out of 67 cities in Heilongjiang as of 2020.

New Street Additions (2006–2020)

SNDi value
2.33
Rank in Heilongjiang
15th of 67

Entire Network (Aggregate)

SNDi value
2.02
Rank in Heilongjiang
21st of 67

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
XinglongBayuganNuevitas

In new street additions, Xinglong built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Bayugan fluctuated in its street-construction patterns and Nuevitas built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Xinglong and Bayugan have been growing further apart in their street-network character since 1975.