Jianshi in context: Street-network sprawl trends

Jianshi in context

1.62.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
JianshiHubei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Jianshi plotted against Hubei and China. The SNDi of new construction in Jianshi peaked in 1991-2005, compared to Hubei which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Jianshi's incremental SNDi fell from 4.29 to 3.62 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jianshi ranked 42nd out of 77 cities in Hubei and 1019th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.62
Rank in China
1199th of 1843
Rank in Hubei
54th of 77

Entire Network (Aggregate)

SNDi value
2.99
Rank in China
1019th of 1843
Rank in Hubei
42nd of 77

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

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
JianshiQuanzhouPlock

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