Jixi in context: Street-network sprawl trends

Jixi 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
JixiHeilongjiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Jixi plotted against Heilongjiang and China. The SNDi of new construction in Jixi peaked in 1976-1990, compared to Heilongjiang which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Jixi's incremental SNDi fell from 4.6 to 4.06 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jixi ranked 57th out of 67 cities in Heilongjiang and 1191st out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.06
Rank in China
1420th of 1843
Rank in Heilongjiang
52nd of 67

Entire Network (Aggregate)

SNDi value
3.21
Rank in China
1191st of 1843
Rank in Heilongjiang
57th of 67

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

What about similarly populated cities?

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
JixiTaizhouMatamoros

In new street additions, Jixi and Taizhou both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Matamoros built increasingly disconnected streets over time. For the full network, Jixi and Matamoros both became progressively more disconnected, while Taizhou grew more disconnected from 1975 through 1991-2005, then improved. Jixi and Taizhou have been converging in their street-network character since 1975.