Changchun in context: Street-network sprawl trends
Changchun in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Changchun plotted against Jilin and China. The SNDi of new construction in Changchun rose steadily, compared to Jilin which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Changchun's incremental SNDi rose from 2.91 to 3.31 between 1991-2005 and 2006-2020. In terms of the aggregate network, Changchun ranked 13th out of 47 cities in Jilin and 411th out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 3.31
- Rank in China
- 1051st of 1843
- Rank in Jilin
- 25th of 47
Entire Network (Aggregate)
- SNDi value
- 2.26
- Rank in China
- 411th of 1843
- Rank in Jilin
- 13th of 47
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Dalian, China
- Melbourne, Australia
- Tashkent, Uzbekistan
- Berlin, Germany
- Nanchang, China
- Athens, Greece
Changchun, Dalian, and Berlin all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network. Changchun and Berlin have been growing further apart in their street-network character since 1975.