Dalian in context: Street-network sprawl trends

Dalian in context

33.64.24.8<19751976–19901991–20052006–2020SNDi of street additions
33.64.24.8<19751976–19901991–20052006–2020SNDi of entire street network
DalianLiaoning (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dalian plotted against Liaoning and China. The SNDi of new construction in Dalian rose steadily, 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, Dalian's incremental SNDi rose from 4.21 to 4.79 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dalian ranked 53rd out of 61 cities in Liaoning and 1438th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.79
Rank in China
1588th of 1843
Rank in Liaoning
55th of 61

Entire Network (Aggregate)

SNDi value
3.64
Rank in China
1438th of 1843
Rank in Liaoning
53rd of 61

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

What about similarly populated cities?

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
DalianMelbourneChangchun

In new street additions, Dalian and Changchun both built increasingly disconnected streets over time, while Melbourne built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend.