Huinan in context: Street-network sprawl trends

Huinan in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
HuinanJilin (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Huinan plotted against Jilin and China. The SNDi of new construction in Huinan peaked in 1976-1990, compared to Jilin which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Huinan's incremental SNDi fell from 4.24 to 3.19 between 1991-2005 and 2006-2020. In terms of the aggregate network, Huinan ranked 26th out of 47 cities in Jilin and 912th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.19
Rank in China
997th of 1843
Rank in Jilin
23rd of 47

Entire Network (Aggregate)

SNDi value
2.86
Rank in China
912th of 1843
Rank in Jilin
26th of 47

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

What about similarly populated cities?

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
HuinanSantanaYoung Leninist

While Santana and Young Leninist both built increasingly disconnected streets over time, Huinan built increasingly disconnected streets from 1975 through 1976-1990, then improved in new street additions. For the full street network, though, all three cities follow the same trend. Huinan and Young Leninist have been growing further apart in their street-network character since 1975.