Miyun in context: Street-network sprawl trends

Miyun in context

1.62.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
MiyunBeijing (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Miyun plotted against Beijing and China. While Beijing and China both followed a zig-zag trend with an overall increase, Miyun's new street additions followed a zig-zag trend with an overall increase. Most recently, Miyun's incremental SNDi rose from 2.33 to 2.61 between 1991-2005 and 2006-2020. In terms of the aggregate network, Miyun ranked 1st out of 10 cities in Beijing and 424th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.61
Rank in China
599th of 1843
Rank in Beijing
1st of 10

Entire Network (Aggregate)

SNDi value
2.29
Rank in China
424th of 1843
Rank in Beijing
1st of 10

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

What about similarly populated cities?

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
MiyunDazhuangKuala Terengganu

In new street additions, Miyun and Dazhuang both fluctuated in its street-construction patterns, while Kuala Terengganu built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full street network, though, all three cities follow the same trend. Notably, Miyun had a more connected network than Dazhuang in 1975 but the two have since reversed their relative ranking.