Lincang in context: Street-network sprawl trends

Lincang in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
LincangYunnan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lincang plotted against Yunnan and China. The SNDi of new construction in Lincang 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, Lincang's incremental SNDi rose from 3.15 to 3.7 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lincang ranked 43rd out of 78 cities in Yunnan and 1072nd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.7
Rank in China
1252nd of 1843
Rank in Yunnan
50th of 78

Entire Network (Aggregate)

SNDi value
3.05
Rank in China
1072nd of 1843
Rank in Yunnan
43rd of 78

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

What about similarly populated cities?

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
LincangSenouLazaro Cardenas

While Sénou and Lázaro Cárdenas both fluctuated in its street-construction patterns, Lincang built increasingly disconnected streets over time in new street additions. For the full street network, though, all three cities follow the same trend. Lincang and Sénou have been growing further apart in their street-network character since 1975.