Lvsigang in context: Street-network sprawl trends

Lvsigang in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
LvsigangJiangsu (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lvsigang plotted against Jiangsu and China. The SNDi of new construction in Lvsigang was at its lowest in 1976-1990, compared to Jiangsu which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Lvsigang's incremental SNDi rose from 2.32 to 2.54 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lvsigang ranked 34th out of 101 cities in Jiangsu and 499th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.54
Rank in China
540th of 1843
Rank in Jiangsu
35th of 101

Entire Network (Aggregate)

SNDi value
2.38
Rank in China
499th of 1843
Rank in Jiangsu
34th of 101

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

What about similarly populated cities?

1.42.12.8<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.8<19751976–19901991–20052006–2020SNDi of entire street network
LvsigangLas AnodCiego de Avila

In new street additions, Lvsigang built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Las Anod built increasingly disconnected streets over time and Ciego de Ávila fluctuated in its street-construction patterns. Looking at the full network, Las Anod and Ciego de Ávila both became progressively more disconnected, while Lvsigang became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Lvsigang and Las Anod have been converging in their street-network character since 1975.