Liuzhi in context: Street-network sprawl trends

Liuzhi in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
LiuzhiGuizhou (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Liuzhi plotted against Guizhou and China. The SNDi of new construction in Liuzhi fell steadily, compared to Guizhou which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Liuzhi's incremental SNDi fell from 1.86 to 1.74 between 1991-2005 and 2006-2020. In terms of the aggregate network, Liuzhi ranked 4th out of 41 cities in Guizhou and 263rd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
1.74
Rank in China
135th of 1843
Rank in Guizhou
2nd of 41

Entire Network (Aggregate)

SNDi value
2.07
Rank in China
263rd of 1843
Rank in Guizhou
4th of 41

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
LiuzhiLubaoNazran

In new street additions, Liuzhi built increasingly connected streets over time, while Lubao fluctuated in its street-construction patterns and Nazran built increasingly disconnected streets over time. For the full network, Liuzhi became progressively more connected, while Lubao fluctuated in connectivity and Nazran became progressively more disconnected. Notably, Liuzhi had a more sprawly network than Nazran in 1975 but the two have since reversed their relative ranking.