Shuanglong in context: Street-network sprawl trends

Shuanglong in context

46810<19751976–19901991–20052006–2020SNDi of street additions
46810<19751976–19901991–20052006–2020SNDi of entire street network
ShuanglongChongqing (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shuanglong plotted against Chongqing and China. The SNDi of new construction in Shuanglong was at its lowest in 1991-2005, compared to Chongqing which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Shuanglong's incremental SNDi rose from 5.95 to 6.51 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shuanglong ranked 42nd out of 47 cities in Chongqing and 1813th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
6.51
Rank in China
1767th of 1843
Rank in Chongqing
40th of 47

Entire Network (Aggregate)

SNDi value
6.68
Rank in China
1813th of 1843
Rank in Chongqing
42nd of 47

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

What about similarly populated cities?

369<19751976–19901991–20052006–2020SNDi of street additions
369<19751976–19901991–20052006–2020SNDi of entire street network
ShuanglongRio ClaroNanxun

In new street additions, Shuanglong built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Rio Claro built increasingly disconnected streets over time and Nanxun built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Shuanglong became progressively more connected, while Rio Claro became progressively more disconnected and Nanxun grew more disconnected from 1975 through 1976-1990, then improved. Shuanglong and Rio Claro have been converging in their street-network character since 1975.