Shenhu in context: Street-network sprawl trends

Shenhu 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
ShenhuFujian (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shenhu plotted against Fujian and China. The SNDi of new construction in Shenhu peaked in 1976-1990, compared to Fujian which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Shenhu's incremental SNDi fell from 2.66 to 2.63 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shenhu ranked 31st out of 75 cities in Fujian and 988th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.63
Rank in China
610th of 1843
Rank in Fujian
11th of 75

Entire Network (Aggregate)

SNDi value
2.95
Rank in China
988th of 1843
Rank in Fujian
31st of 75

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
ShenhuPhagwaraDhenkanal

In new street additions, Shenhu built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Phagwara fluctuated in its street-construction patterns and Dhenkanal built increasingly disconnected streets over time. Looking at the full network, Phagwara and Dhenkanal both became progressively more disconnected, while Shenhu became progressively more connected. Notably, Shenhu had a more sprawly network than Dhenkanal in 1975 but the two have since reversed their relative ranking.