Shanhaiguan in context: Street-network sprawl trends
Shanhaiguan in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shanhaiguan plotted against Hebei and China. The SNDi of new construction in Shanhaiguan peaked in 1976-1990, 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, Shanhaiguan's incremental SNDi fell from 4.36 to 3.98 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shanhaiguan ranked 85th out of 120 cities in Hebei and 1223rd out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 3.98
- Rank in China
- 1390th of 1843
- Rank in Hebei
- 88th of 120
Entire Network (Aggregate)
- SNDi value
- 3.26
- Rank in China
- 1223rd of 1843
- Rank in Hebei
- 85th 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, Shanhaiguan built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Basoda fluctuated in its street-construction patterns and Бункерная built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Shanhaiguan and Basoda both became progressively more disconnected, while Бункерная became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Shanhaiguan and Basoda have been converging in their street-network character since 1975.