Pengshan in context: Street-network sprawl trends
Pengshan in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Pengshan plotted against Sichuan and China. The SNDi of new construction in Pengshan peaked in 1991-2005, compared to Sichuan which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Pengshan's incremental SNDi fell from 5.99 to 4.5 between 1991-2005 and 2006-2020. In terms of the aggregate network, Pengshan ranked 90th out of 98 cities in Sichuan and 1755th out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 4.5
- Rank in China
- 1531st of 1843
- Rank in Sichuan
- 77th of 98
Entire Network (Aggregate)
- SNDi value
- 5.35
- Rank in China
- 1755th of 1843
- Rank in Sichuan
- 90th of 98
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Pengshan and Xinhe both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Dinga built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Pengshan and Xinhe both grew more disconnected from 1975 through 1991-2005, then improved, while Dinga became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Pengshan had a more connected network than Dinga in 1975 but the two have since reversed their relative ranking.