Shunan in context: Street-network sprawl trends
Shunan in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shunan plotted against Yamaguchi and Japan. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Shunan's incremental SNDi rose from 4.18 to 4.62 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shunan ranked 1st out of 5 cities in Yamaguchi and 106th out of 135 in Japan as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 4.62
- Rank in Japan
- 128th of 135
- Rank in Yamaguchi
- 4th of 5
Entire Network (Aggregate)
- SNDi value
- 2.75
- Rank in Japan
- 106th of 135
- Rank in Yamaguchi
- 1st of 5
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Shunan and Gujar Khan both fluctuated in its street-construction patterns, while Yong'an built increasingly connected streets over time. For the full network, Shunan became progressively more disconnected, while Yong'an became progressively more connected and Gujar Khan fluctuated in connectivity.