Bishan in context: Street-network sprawl trends
Bishan in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Bishan plotted against Chongqing and China. The SNDi of new construction in Bishan followed a zig-zag trend with an overall increase, compared to Chongqing which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Bishan's incremental SNDi fell from 1.91 to 1.86 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bishan ranked 2nd out of 47 cities in Chongqing and 151st out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 1.86
- Rank in China
- 186th of 1843
- Rank in Chongqing
- 3rd of 47
Entire Network (Aggregate)
- SNDi value
- 1.85
- Rank in China
- 151st of 1843
- Rank in Chongqing
- 2nd of 47
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Dunhua, China
- Kankan, Guinea
- Sreemangal, Bangladesh
- Skikda, Algeria
- Rabwah, Pakistan
- Wichita, United States
In new street additions, Bishan fluctuated in its street-construction patterns, while Dunhua built increasingly disconnected streets from 1975 through 1976-1990, then improved and Skikda built increasingly disconnected streets over time. Looking at the full network, Dunhua and Skikda both became progressively more disconnected, while Bishan fluctuated in connectivity. Bishan and Dunhua have been growing further apart in their street-network character since 1975.