Da'an in context: Street-network sprawl trends

Da'an in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
Da'anJilin (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Da'an plotted against Jilin and China. The SNDi of new construction in Da'an peaked in 1976-1990, compared to Jilin which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Da'an's incremental SNDi fell from 4.45 to 3.27 between 1991-2005 and 2006-2020. In terms of the aggregate network, Da'an ranked 33rd out of 47 cities in Jilin and 1212th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.27
Rank in China
1028th of 1843
Rank in Jilin
24th of 47

Entire Network (Aggregate)

SNDi value
3.24
Rank in China
1212th of 1843
Rank in Jilin
33rd of 47

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

36912<19751976–19901991–20052006–2020SNDi of street additions
36912<19751976–19901991–20052006–2020SNDi of entire street network
Da'anKyaiklatSobradinho II

In new street additions, Da'an built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Kyaiklat fluctuated in its street-construction patterns and Sobradinho II built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Da'an and Sobradinho II have been growing further apart in their street-network character since 1975.