Lianjiang in context: Street-network sprawl trends

Lianjiang in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
LianjiangGuangdong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lianjiang plotted against Guangdong and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Lianjiang's incremental SNDi rose from 2.76 to 3.43 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lianjiang ranked 44th out of 133 cities in Guangdong and 812th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.43
Rank in China
1122nd of 1843
Rank in Guangdong
52nd of 133

Entire Network (Aggregate)

SNDi value
2.76
Rank in China
812th of 1843
Rank in Guangdong
44th of 133

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

What about similarly populated cities?

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
LianjiangLanxiTaishan

In new street additions, Lianjiang fluctuated in its street-construction patterns, while Lanxi built increasingly disconnected streets from 1975 through 1976-1990, then improved and Taishan built increasingly disconnected streets over time. For the full network, Lianjiang and Taishan both became progressively more disconnected, while Lanxi grew more disconnected from 1975 through 1976-1990, then improved. Notably, Lianjiang had a more sprawly network than Taishan in 1975 but the two have since reversed their relative ranking.