Ulanqab in context: Street-network sprawl trends

Ulanqab in context

33.544.5<19751976–19901991–20052006–2020SNDi of street additions
33.544.5<19751976–19901991–20052006–2020SNDi of entire street network
UlanqabNei Mongol (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ulanqab plotted against Nei Mongol and China. The SNDi of new construction in Ulanqab peaked in 1976-1990, compared to Nei Mongol which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Ulanqab's incremental SNDi fell from 3.88 to 2.8 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ulanqab ranked 36th out of 43 cities in Nei Mongol and 1458th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.8
Rank in China
736th of 1843
Rank in Nei Mongol
16th of 43

Entire Network (Aggregate)

SNDi value
3.68
Rank in China
1458th of 1843
Rank in Nei Mongol
36th of 43

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
UlanqabCenturionXuancheng

In new street additions, Ulanqab built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Centurion built increasingly disconnected streets from 1975 through 1991-2005, then improved and Xuancheng built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Ulanqab grew more disconnected from 1975 through 1976-1990, then improved, while Centurion became progressively more disconnected and Xuancheng became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Ulanqab had a more sprawly network than Xuancheng in 1975 but the two have since reversed their relative ranking.