Anning in context: Street-network sprawl trends

Anning in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
AnningYunnan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Anning plotted against Yunnan and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Anning's incremental SNDi rose from 2.53 to 3.31 between 1991-2005 and 2006-2020. In terms of the aggregate network, Anning ranked 24th out of 78 cities in Yunnan and 619th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.31
Rank in China
1055th of 1843
Rank in Yunnan
39th of 78

Entire Network (Aggregate)

SNDi value
2.54
Rank in China
619th of 1843
Rank in Yunnan
24th of 78

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

What about similarly populated cities?

1.82.73.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.6<19751976–19901991–20052006–2020SNDi of entire street network
AnningCabo FrioTolyatti

In new street additions, Anning fluctuated in its street-construction patterns, while Cabo Frio built increasingly disconnected streets from 1975 through 1976-1990, then improved and Tolyatti built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Anning and Tolyatti have been growing further apart in their street-network character since 1975.