Siping in context: Street-network sprawl trends

Siping 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
SipingJilin (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Siping plotted against Jilin and China. While Jilin and China both followed a zig-zag trend with an overall increase, Siping's new street additions followed a zig-zag trend with an overall increase. Most recently, Siping's incremental SNDi rose from 2.48 to 2.52 between 1991-2005 and 2006-2020. In terms of the aggregate network, Siping ranked 14th out of 47 cities in Jilin and 449th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.52
Rank in China
529th of 1843
Rank in Jilin
16th of 47

Entire Network (Aggregate)

SNDi value
2.32
Rank in China
449th of 1843
Rank in Jilin
14th of 47

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
SipingSelongDresden

In new street additions, Siping fluctuated in its street-construction patterns, while Selong built increasingly disconnected streets from 1975 through 1991-2005, then improved and Dresden built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Siping and Selong have been growing further apart in their street-network character since 1975.