Zhentou in context: Street-network sprawl trends
Zhentou in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zhentou plotted against Hunan and China. While Hunan and China both followed a zig-zag trend with an overall increase, Zhentou's new street additions followed a zig-zag trend with an overall increase. Most recently, Zhentou's incremental SNDi rose from 2.44 to 5.06 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zhentou ranked 39th out of 89 cities in Hunan and 808th out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 5.06
- Rank in China
- 1648th of 1843
- Rank in Hunan
- 82nd of 89
Entire Network (Aggregate)
- SNDi value
- 2.76
- Rank in China
- 808th of 1843
- Rank in Hunan
- 39th of 89
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
While Pol-E-Charkhi and Taxco both built increasingly disconnected streets from 1975 through 1976-1990, then improved, Zhentou fluctuated in its street-construction patterns in new street additions. For the full network, Zhentou and Taxco both became progressively more disconnected, while Pol-E-Charkhi grew more disconnected from 1975 through 1976-1990, then improved. Zhentou and Pol-E-Charkhi have been converging in their street-network character since 1975.