Keshan in context: Street-network sprawl trends

Keshan in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
KeshanHeilongjiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Keshan plotted against Heilongjiang and China. The SNDi of new construction in Keshan 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, Keshan's incremental SNDi fell from 5.05 to 3.81 between 1991-2005 and 2006-2020. In terms of the aggregate network, Keshan ranked 17th out of 67 cities in Heilongjiang and 167th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.81
Rank in China
1310th of 1843
Rank in Heilongjiang
45th of 67

Entire Network (Aggregate)

SNDi value
1.89
Rank in China
167th of 1843
Rank in Heilongjiang
17th 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
KeshanKobaniShwegu

In new street additions, Keshan and Shwegu both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Kobani built increasingly disconnected streets over time. For the full network, Keshan and Kobani both became progressively more disconnected, while Shwegu grew more disconnected from 1975 through 1991-2005, then improved.