Leizhou in context: Street-network sprawl trends

Leizhou in context

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
LeizhouGuangdong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Leizhou plotted against Guangdong and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Leizhou's incremental SNDi rose from 2.05 to 2.76 between 1991-2005 and 2006-2020. In terms of the aggregate network, Leizhou ranked 16th out of 133 cities in Guangdong and 365th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.76
Rank in China
704th of 1843
Rank in Guangdong
26th of 133

Entire Network (Aggregate)

SNDi value
2.22
Rank in China
365th of 1843
Rank in Guangdong
16th of 133

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

What about similarly populated cities?

22.53<19751976–19901991–20052006–2020SNDi of street additions
22.53<19751976–19901991–20052006–2020SNDi of entire street network
LeizhouGangchengLewisville

In new street additions, Leizhou and Gangcheng both fluctuated in its street-construction patterns, while Lewisville built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Leizhou fluctuated in connectivity, while Gangcheng became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards and Lewisville grew more disconnected from 1975 through 1991-2005, then improved. Leizhou and Gangcheng have been converging in their street-network character since 1975.