Shuantaizi in context: Street-network sprawl trends

Shuantaizi in context

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
ShuantaiziLiaoning (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shuantaizi plotted against Liaoning and China. The SNDi of new construction in Shuantaizi peaked in 1991-2005, compared to Liaoning which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Shuantaizi's incremental SNDi fell from 3.65 to 3.51 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shuantaizi ranked 36th out of 61 cities in Liaoning and 848th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.51
Rank in China
1158th of 1843
Rank in Liaoning
38th of 61

Entire Network (Aggregate)

SNDi value
2.79
Rank in China
848th of 1843
Rank in Liaoning
36th of 61

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
ShuantaiziReykjavikKotli

In new street additions, Shuantaizi built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Reykjavik fluctuated in its street-construction patterns and Kotli fluctuated in its street-construction patterns. For the full network, Shuantaizi became progressively more disconnected, while Reykjavik fluctuated in connectivity and Kotli fluctuated in connectivity. Notably, Shuantaizi had a more connected network than Reykjavik in 1975 but the two have since reversed their relative ranking.