Gong in context: Street-network sprawl trends

Gong in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
GongSichuan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Gong plotted against Sichuan and China. The SNDi of new construction in Gong peaked in 1976-1990, compared to Sichuan which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Gong's incremental SNDi fell from 1.57 to 1.45 between 1991-2005 and 2006-2020. In terms of the aggregate network, Gong ranked 8th out of 98 cities in Sichuan and 144th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
1.45
Rank in China
57th of 1843
Rank in Sichuan
2nd of 98

Entire Network (Aggregate)

SNDi value
1.84
Rank in China
144th of 1843
Rank in Sichuan
8th of 98

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
GongTegalglagahTerrebonne

In new street additions, Gong built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Tegalglagah built increasingly disconnected streets from 1975 through 1991-2005, then improved and Terrebonne built increasingly disconnected streets over time. Looking at the full network, Tegalglagah and Terrebonne both became progressively more disconnected, while Gong grew more disconnected from 1975 through 1976-1990, then improved. Gong and Terrebonne have been growing further apart in their street-network character since 1975.