Lanxi in context: Street-network sprawl trends
Lanxi in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lanxi plotted against Heilongjiang and China. The SNDi of new construction in Lanxi peaked in 1976-1990, compared to Heilongjiang which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Lanxi's incremental SNDi fell from 2.65 to 1.39 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lanxi ranked 9th out of 67 cities in Heilongjiang and 86th out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 1.39
- Rank in China
- 50th of 1843
- Rank in Heilongjiang
- 6th of 67
Entire Network (Aggregate)
- SNDi value
- 1.66
- Rank in China
- 86th of 1843
- Rank in Heilongjiang
- 9th of 67
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Lanxi built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Tubhar built increasingly disconnected streets over time and Tirumangalam built increasingly disconnected streets from 1975 through 1991-2005, then improved. Looking at the full network, Tubhar and Tirumangalam both became progressively more disconnected, while Lanxi grew more disconnected from 1975 through 1991-2005, then improved.