Taixing in context: Street-network sprawl trends

Taixing 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
TaixingJiangsu (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Taixing plotted against Jiangsu and China. The SNDi of new construction in Taixing peaked in 1976-1990, compared to Jiangsu which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Taixing's incremental SNDi fell from 3.06 to 2.56 between 1991-2005 and 2006-2020. In terms of the aggregate network, Taixing ranked 49th out of 101 cities in Jiangsu and 829th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.56
Rank in China
558th of 1843
Rank in Jiangsu
38th of 101

Entire Network (Aggregate)

SNDi value
2.78
Rank in China
829th of 1843
Rank in Jiangsu
49th of 101

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

What about similarly populated cities?

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
TaixingKirovSaki

In new street additions, Taixing and Kirov both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Saki built increasingly disconnected streets over time. Looking at the full network, Kirov and Saki both became progressively more disconnected, while Taixing grew more disconnected from 1975 through 1991-2005, then improved. Notably, Taixing had a more sprawly network than Saki in 1975 but the two have since reversed their relative ranking.