Anfu County in context: Street-network sprawl trends

Anfu County in context

1.82.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
Anfu CountyJiangxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Anfu County plotted against Jiangxi and China. The SNDi of new construction in Anfu County rose steadily, compared to Jiangxi which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Anfu County's incremental SNDi rose from 2.47 to 2.56 between 1991-2005 and 2006-2020. In terms of the aggregate network, Anfu County ranked 24th out of 82 cities in Jiangxi and 533rd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.56
Rank in China
561st of 1843
Rank in Jiangxi
26th of 82

Entire Network (Aggregate)

SNDi value
2.43
Rank in China
533rd of 1843
Rank in Jiangxi
24th of 82

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

What about similarly populated cities?

1.622.42.83.2<19751976–19901991–20052006–2020SNDi of street additions
1.622.42.83.2<19751976–19901991–20052006–2020SNDi of entire street network
Anfu CountyMukangaTanout

In new street additions, Anfu County and Tanout both built increasingly disconnected streets over time, while Mukanga fluctuated in its street-construction patterns. For the full network, Anfu County and Tanout both became progressively more disconnected, while Mukanga became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards.