Siqian in context: Street-network sprawl trends
Siqian in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Siqian plotted against Guangdong and China. The SNDi of new construction in Siqian peaked in 1991-2005, compared to Guangdong which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Siqian's incremental SNDi fell from 3.53 to 2.28 between 1991-2005 and 2006-2020. In terms of the aggregate network, Siqian ranked 61st out of 133 cities in Guangdong and 1108th out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 2.28
- Rank in China
- 387th of 1843
- Rank in Guangdong
- 16th of 133
Entire Network (Aggregate)
- SNDi value
- 3.11
- Rank in China
- 1108th of 1843
- Rank in Guangdong
- 61st of 133
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Siqian built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Kalianget built increasingly disconnected streets from 1975 through 1976-1990, then improved and Dengbu built increasingly disconnected streets over time. For the full network, Siqian and Kalianget both grew more disconnected from 1975 through 1991-2005, then improved, while Dengbu became progressively more disconnected.