Changning in context: Street-network sprawl trends
Changning in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Changning plotted against Hunan and China. The SNDi of new construction in Changning rose steadily, compared to Hunan which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Changning's incremental SNDi rose from 3.48 to 3.81 between 1991-2005 and 2006-2020. In terms of the aggregate network, Changning ranked 54th out of 89 cities in Hunan as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 3.81
- Rank in Hunan
- 67th of 89
Entire Network (Aggregate)
- SNDi value
- 3.2
- Rank in Hunan
- 54th of 89
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Paranaguá, Brazil
- Manbij, Syria
- Arjawinangun, Indonesia
- Richmond, United States
- Ghotki, Pakistan
- Aykel, Ethiopia
In new street additions, Changning and Richmond both built increasingly disconnected streets over time, while Paranaguá fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Changning and Paranaguá have been converging in their street-network character since 1975.