Tiandong in context: Street-network sprawl trends

Tiandong in context

3.23.644.44.8<19751976–19901991–20052006–2020SNDi of street additions
3.23.644.44.8<19751976–19901991–20052006–2020SNDi of entire street network
TiandongGuangxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tiandong plotted against Guangxi and China. The SNDi of new construction in Tiandong peaked in 1976-1990, compared to Guangxi which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Tiandong's incremental SNDi fell from 4.53 to 4.46 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tiandong ranked 57th out of 63 cities in Guangxi and 1643rd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.46
Rank in China
1524th of 1843
Rank in Guangxi
47th of 63

Entire Network (Aggregate)

SNDi value
4.43
Rank in China
1643rd of 1843
Rank in Guangxi
57th of 63

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

What about similarly populated cities?

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
TiandongHanauWebster

In new street additions, Tiandong and Webster both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Hanau fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend.