Midu in context: Street-network sprawl trends

Midu in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Midu plotted against Yunnan and China. The SNDi of new construction in Midu rose steadily, compared to Yunnan which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Midu's incremental SNDi rose from 3.09 to 4.15 between 1991-2005 and 2006-2020. In terms of the aggregate network, Midu ranked 30th out of 78 cities in Yunnan and 770th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.15
Rank in China
1452nd of 1843
Rank in Yunnan
60th of 78

Entire Network (Aggregate)

SNDi value
2.72
Rank in China
770th of 1843
Rank in Yunnan
30th of 78

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

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
MiduBulunguWukro

In new street additions, Midu built increasingly disconnected streets over time, while Bulungu fluctuated in its street-construction patterns and Wukro built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Notably, Midu had a more connected network than Bulungu in 1975 but the two have since reversed their relative ranking.