Lu in context: Street-network sprawl trends

Lu in context

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
LuSichuan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lu plotted against Sichuan and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Lu's incremental SNDi rose from 1.37 to 2.26 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lu ranked 5th out of 98 cities in Sichuan and 112th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.26
Rank in China
374th of 1843
Rank in Sichuan
12th of 98

Entire Network (Aggregate)

SNDi value
1.75
Rank in China
112th of 1843
Rank in Sichuan
5th of 98

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
LuYongfengManiar

In new street additions, Lu fluctuated in its street-construction patterns, while Yongfeng built increasingly disconnected streets from 1975 through 1976-1990, then improved and Maniar built increasingly disconnected streets over time. For the full network, Lu fluctuated in connectivity, while Yongfeng grew more disconnected from 1975 through 1991-2005, then improved and Maniar became progressively more disconnected. Lu and Yongfeng have been growing further apart in their street-network character since 1975.