Luzhou in context: Street-network sprawl trends

Luzhou in context

2.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
LuzhouSichuan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Luzhou plotted against Sichuan and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Luzhou's incremental SNDi rose from 2.58 to 2.89 between 1991-2005 and 2006-2020. In terms of the aggregate network, Luzhou ranked 42nd out of 98 cities in Sichuan and 969th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.89
Rank in China
804th of 1843
Rank in Sichuan
36th of 98

Entire Network (Aggregate)

SNDi value
2.93
Rank in China
969th of 1843
Rank in Sichuan
42nd of 98

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

What about similarly populated cities?

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
LuzhouKakinadaBalung

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