Liaoyang in context: Street-network sprawl trends

Liaoyang in context

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
LiaoyangLiaoning (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Liaoyang plotted against Liaoning and China. The SNDi of new construction in Liaoyang peaked in 1991-2005, compared to Liaoning which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Liaoyang's incremental SNDi fell from 2.58 to 2.38 between 1991-2005 and 2006-2020. In terms of the aggregate network, Liaoyang ranked 22nd out of 61 cities in Liaoning and 540th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.38
Rank in China
440th of 1843
Rank in Liaoning
18th of 61

Entire Network (Aggregate)

SNDi value
2.44
Rank in China
540th of 1843
Rank in Liaoning
22nd of 61

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

What about similarly populated cities?

1.622.42.83.2<19751976–19901991–20052006–2020SNDi of street additions
1.622.42.83.2<19751976–19901991–20052006–2020SNDi of entire street network
LiaoyangSanliurfaYingkou

While Şanlıurfa and Yingkou both fluctuated in its street-construction patterns, Liaoyang built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. For the full network, Liaoyang grew more disconnected from 1975 through 1991-2005, then improved, while Şanlıurfa grew more disconnected from 1975 through 1976-1990, then improved and Yingkou became progressively more connected. Liaoyang and Yingkou have been converging in their street-network character since 1975.