Dujiangyan in context: Street-network sprawl trends

Dujiangyan in context

2.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
DujiangyanSichuan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dujiangyan plotted against Sichuan and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Dujiangyan's incremental SNDi rose from 2.64 to 3.21 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dujiangyan ranked 43rd out of 98 cities in Sichuan and 975th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.21
Rank in China
1009th of 1843
Rank in Sichuan
52nd of 98

Entire Network (Aggregate)

SNDi value
2.93
Rank in China
975th of 1843
Rank in Sichuan
43rd of 98

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
DujiangyanDusuqFaridpur

While Dusuq and Faridpur both built increasingly disconnected streets over time, Dujiangyan fluctuated in its street-construction patterns in new street additions. Looking at the full network, Dusuq and Faridpur both became progressively more disconnected, while Dujiangyan fluctuated in connectivity. Notably, Dujiangyan had a more sprawly network than Faridpur in 1975 but the two have since reversed their relative ranking.