Jiamusi in context: Street-network sprawl trends

Jiamusi in context

33.64.2<19751976–19901991–20052006–2020SNDi of street additions
33.64.2<19751976–19901991–20052006–2020SNDi of entire street network
JiamusiHeilongjiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Jiamusi plotted against Heilongjiang and China. The SNDi of new construction in Jiamusi 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, Jiamusi's incremental SNDi fell from 4.47 to 4.17 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jiamusi ranked 63rd out of 67 cities in Heilongjiang and 1474th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.17
Rank in China
1457th of 1843
Rank in Heilongjiang
53rd of 67

Entire Network (Aggregate)

SNDi value
3.73
Rank in China
1474th of 1843
Rank in Heilongjiang
63rd of 67

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

What about similarly populated cities?

33.64.2<19751976–19901991–20052006–2020SNDi of street additions
33.64.2<19751976–19901991–20052006–2020SNDi of entire street network
JiamusiJhangOkara

While Jhang and Okara both built increasingly disconnected streets over time, Jiamusi built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. For the full street network, though, all three cities follow the same trend. Jiamusi and Jhang have been converging in their street-network character since 1975.