Lianhua in context: Street-network sprawl trends

Lianhua in context

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
LianhuaJiangxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lianhua plotted against Jiangxi and China. The SNDi of new construction in Lianhua peaked in 1976-1990, compared to Jiangxi which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Lianhua's incremental SNDi fell from 3.51 to 2.07 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lianhua ranked 49th out of 82 cities in Jiangxi and 920th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.07
Rank in China
282nd of 1843
Rank in Jiangxi
13th of 82

Entire Network (Aggregate)

SNDi value
2.87
Rank in China
920th of 1843
Rank in Jiangxi
49th of 82

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
LianhuaTabluhaPuerto Escondido

While Tabluha and Puerto Escondido both built increasingly disconnected streets over time, Lianhua built increasingly disconnected streets from 1975 through 1976-1990, then improved in new street additions. For the full network, Lianhua and Tabluha both grew more disconnected from 1975 through 1991-2005, then improved, while Puerto Escondido became progressively more disconnected. Notably, Lianhua had a more connected network than Tabluha in 1975 but the two have since reversed their relative ranking.