Liaocheng in context: Street-network sprawl trends

Liaocheng in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
LiaochengShandong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Liaocheng plotted against Shandong and China. The SNDi of new construction in Liaocheng peaked in 1991-2005, compared to Shandong which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Liaocheng's incremental SNDi fell from 2.97 to 2.79 between 1991-2005 and 2006-2020. In terms of the aggregate network, Liaocheng ranked 72nd out of 124 cities in Shandong and 620th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.79
Rank in China
728th of 1843
Rank in Shandong
73rd of 124

Entire Network (Aggregate)

SNDi value
2.54
Rank in China
620th of 1843
Rank in Shandong
72nd of 124

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

What about similarly populated cities?

246810<19751976–19901991–20052006–2020SNDi of street additions
246810<19751976–19901991–20052006–2020SNDi of entire street network
LiaochengBauchiSilchar

While Bauchi and Silchar both built increasingly disconnected streets over time, Liaocheng built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. For the full street network, though, all three cities follow the same trend.