Pukou in context: Street-network sprawl trends
Pukou in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Pukou plotted against Hunan and China. The SNDi of new construction in Pukou peaked in 1976-1990, compared to Hunan which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Pukou's incremental SNDi fell from 3.6 to 3.37 between 1991-2005 and 2006-2020. In terms of the aggregate network, Pukou ranked 69th out of 89 cities in Hunan and 1459th out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 3.37
- Rank in China
- 1090th of 1843
- Rank in Hunan
- 56th of 89
Entire Network (Aggregate)
- SNDi value
- 3.68
- Rank in China
- 1459th of 1843
- Rank in Hunan
- 69th of 89
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Pukou and Duyun both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Perinthalmanna built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Pukou grew more disconnected from 1975 through 1976-1990, then improved, while Perinthalmanna became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Duyun grew more disconnected from 1975 through 1991-2005, then improved. Pukou and Perinthalmanna have been converging in their street-network character since 1975.