Zhangjiakou in context: Street-network sprawl trends
Zhangjiakou in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zhangjiakou plotted against Hebei and China. The SNDi of new construction in Zhangjiakou fell steadily, compared to Hebei which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Zhangjiakou's incremental SNDi fell from 4.18 to 4.14 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zhangjiakou ranked 112th out of 120 cities in Hebei and 1598th out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 4.14
- Rank in China
- 1446th of 1843
- Rank in Hebei
- 96th of 120
Entire Network (Aggregate)
- SNDi value
- 4.2
- Rank in China
- 1598th of 1843
- Rank in Hebei
- 112th of 120
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Zhangjiakou built increasingly connected streets over time, while Bogura built increasingly disconnected streets over time and Zhumadian built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Zhangjiakou became progressively more connected, while Bogura became progressively more disconnected and Zhumadian became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Zhangjiakou and Bogura have been converging in their street-network character since 1975.