Pengzhou in context: Street-network sprawl trends

Pengzhou 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
PengzhouSichuan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Pengzhou plotted against Sichuan and China. The SNDi of new construction in Pengzhou rose steadily, compared to Sichuan which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Pengzhou's incremental SNDi rose from 3.49 to 3.9 between 1991-2005 and 2006-2020. In terms of the aggregate network, Pengzhou ranked 57th out of 98 cities in Sichuan and 1229th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.9
Rank in China
1354th of 1843
Rank in Sichuan
67th of 98

Entire Network (Aggregate)

SNDi value
3.27
Rank in China
1229th of 1843
Rank in Sichuan
57th of 98

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
PengzhouCannesChita

In new street additions, Pengzhou built increasingly disconnected streets over time, while Cannes built increasingly disconnected streets from 1975 through 1991-2005, then improved and Chita fluctuated in its street-construction patterns. For the full network, Pengzhou and Cannes both became progressively more disconnected, while Chita became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Pengzhou had a more connected network than Chita in 1975 but the two have since reversed their relative ranking.