Yanling in context: Street-network sprawl trends
Yanling in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yanling plotted against Henan and China. The SNDi of new construction in Yanling followed a zig-zag trend with an overall decrease, compared to Henan which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Yanling's incremental SNDi fell from 1.53 to 1.37 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yanling ranked 16th out of 129 cities in Henan and 97th out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 1.37
- Rank in China
- 47th of 1843
- Rank in Henan
- 3rd of 129
Entire Network (Aggregate)
- SNDi value
- 1.7
- Rank in China
- 97th of 1843
- Rank in Henan
- 16th of 129
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Chalco, United States
- Tongrim, North Korea
- Jaigaon, India
- Karyari, Chad
- Mersa, Ethiopia
- Gulin, China
In new street additions, Yanling fluctuated in its street-construction patterns, while Chalco built increasingly disconnected streets from 1975 through 1976-1990, then improved and Karyari fluctuated in its street-construction patterns. For the full network, Yanling became progressively more connected, while Chalco grew more disconnected from 1975 through 1976-1990, then improved and Karyari fluctuated in connectivity.