Arun in context: Street-network sprawl trends

Arun in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
ArunNei Mongol (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Arun plotted against Nei Mongol and China. The SNDi of new construction in Arun peaked in 1991-2005, compared to Nei Mongol which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Arun's incremental SNDi fell from 4.85 to 2.17 between 1991-2005 and 2006-2020. In terms of the aggregate network, Arun ranked 11th out of 43 cities in Nei Mongol and 674th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.17
Rank in China
319th of 1843
Rank in Nei Mongol
4th of 43

Entire Network (Aggregate)

SNDi value
2.62
Rank in China
674th of 1843
Rank in Nei Mongol
11th of 43

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
ArunCaldas NovasProvidence

While Caldas Novas and Providence both fluctuated in its street-construction patterns, Arun built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. For the full network, Arun grew more disconnected from 1975 through 1991-2005, then improved, while Caldas Novas became progressively more disconnected and Providence grew more disconnected from 1975 through 1976-1990, then improved. Arun and Caldas Novas have been growing further apart in their street-network character since 1975.