Woluogu in context: Street-network sprawl trends

Woluogu 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
WoluoguHebei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Woluogu plotted against Hebei and China. The SNDi of new construction in Woluogu peaked in 1976-1990, compared to Hebei which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Woluogu's incremental SNDi fell from 3.33 to 3.01 between 1991-2005 and 2006-2020. In terms of the aggregate network, Woluogu ranked 72nd out of 120 cities in Hebei and 1078th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.01
Rank in China
885th of 1843
Rank in Hebei
52nd of 120

Entire Network (Aggregate)

SNDi value
3.06
Rank in China
1078th of 1843
Rank in Hebei
72nd of 120

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
WoluoguVoganAkhgaon

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