Gaolong in context: Street-network sprawl trends

Gaolong in context

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
GaolongHenan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Gaolong plotted against Henan and China. The SNDi of new construction in Gaolong followed a zig-zag trend with an overall increase, compared to Henan which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Gaolong's incremental SNDi fell from 3.04 to 2.83 between 1991-2005 and 2006-2020. In terms of the aggregate network, Gaolong ranked 89th out of 129 cities in Henan and 906th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.83
Rank in China
762nd of 1843
Rank in Henan
86th of 129

Entire Network (Aggregate)

SNDi value
2.86
Rank in China
906th of 1843
Rank in Henan
89th of 129

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

What about similarly populated cities?

246810<19751976–19901991–20052006–2020SNDi of street additions
246810<19751976–19901991–20052006–2020SNDi of entire street network
GaolongSinkoBomadi

In new street additions, Gaolong and Bomadi both fluctuated in its street-construction patterns, while Sinko built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Gaolong and Bomadi both became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Sinko became progressively more disconnected. Gaolong and Sinko have been growing further apart in their street-network character since 1975.