Ranghulu in context: Street-network sprawl trends

Ranghulu 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
RanghuluHeilongjiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ranghulu plotted against Heilongjiang and China. While Heilongjiang and China both followed a zig-zag trend with an overall increase, Ranghulu's new street additions followed a zig-zag trend with an overall decrease. Most recently, Ranghulu's incremental SNDi rose from 2.19 to 2.54 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ranghulu ranked 32nd out of 67 cities in Heilongjiang and 551st out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.54
Rank in China
539th of 1843
Rank in Heilongjiang
21st of 67

Entire Network (Aggregate)

SNDi value
2.46
Rank in China
551st of 1843
Rank in Heilongjiang
32nd of 67

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

What about similarly populated cities?

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
RanghuluPurniaWuzhou

While Purnia and Wuzhou both built increasingly disconnected streets over time, Ranghulu fluctuated in its street-construction patterns in new street additions. Looking at the full network, Purnia and Wuzhou both became progressively more disconnected, while Ranghulu fluctuated in connectivity. Notably, Ranghulu had a more sprawly network than Wuzhou in 1975 but the two have since reversed their relative ranking.