Huangchuan in context: Street-network sprawl trends
Huangchuan in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Huangchuan plotted against Henan and China. The SNDi of new construction in Huangchuan rose steadily, compared to Henan which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Huangchuan's incremental SNDi rose from 3.02 to 4.17 between 1991-2005 and 2006-2020. In terms of the aggregate network, Huangchuan ranked 78th out of 129 cities in Henan and 775th out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 4.17
- Rank in China
- 1460th of 1843
- Rank in Henan
- 121st of 129
Entire Network (Aggregate)
- SNDi value
- 2.72
- Rank in China
- 775th of 1843
- Rank in Henan
- 78th of 129
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Huangchuan and Sumbe both built increasingly disconnected streets over time, while Hawrah fluctuated in its street-construction patterns. For the full network, Huangchuan and Sumbe both became progressively more disconnected, while Hawrah became progressively more connected. Huangchuan and Sumbe have been converging in their street-network character since 1975.