Dengkou in context: Street-network sprawl trends

Dengkou in context

3.23.644.4<19751976–19901991–20052006–2020SNDi of street additions
3.23.644.4<19751976–19901991–20052006–2020SNDi of entire street network
DengkouNei Mongol (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dengkou plotted against Nei Mongol and China. The SNDi of new construction in Dengkou 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, Dengkou's incremental SNDi fell from 4.02 to 3.79 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dengkou ranked 31st out of 43 cities in Nei Mongol and 1298th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.79
Rank in China
1304th of 1843
Rank in Nei Mongol
33rd of 43

Entire Network (Aggregate)

SNDi value
3.38
Rank in China
1298th of 1843
Rank in Nei Mongol
31st of 43

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

What about similarly populated cities?

3.64.55.46.3<19751976–19901991–20052006–2020SNDi of street additions
3.64.55.46.3<19751976–19901991–20052006–2020SNDi of entire street network
DengkouMong CaiDhamdaha

In new street additions, Dengkou built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Móng Cái built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns and Dhamdaha built increasingly disconnected streets over time. For the full network, Dengkou grew more disconnected from 1975 through 1991-2005, then improved, while Móng Cái became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards and Dhamdaha became progressively more disconnected. Dengkou and Móng Cái have been converging in their street-network character since 1975.