Acheng in context: Street-network sprawl trends
Acheng in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Acheng plotted against Heilongjiang and China. While Heilongjiang and China both followed a zig-zag trend with an overall increase, Acheng's new street additions followed a zig-zag trend with an overall increase. Most recently, Acheng's incremental SNDi rose from 2.14 to 2.19 between 1991-2005 and 2006-2020. In terms of the aggregate network, Acheng ranked 18th out of 67 cities in Heilongjiang and 181st out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 2.19
- Rank in China
- 330th of 1843
- Rank in Heilongjiang
- 13th of 67
Entire Network (Aggregate)
- SNDi value
- 1.91
- Rank in China
- 181st of 1843
- Rank in Heilongjiang
- 18th 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, Acheng fluctuated in its street-construction patterns, while Nanchuan built increasingly disconnected streets from 1975 through 1991-2005, then improved and Pathein built increasingly disconnected streets over time. For the full network, Acheng and Pathein both became progressively more disconnected, while Nanchuan grew more disconnected from 1975 through 1991-2005, then improved. Acheng and Nanchuan have been growing further apart in their street-network character since 1975.