Shangdu in context: Street-network sprawl trends

Shangdu 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
ShangduNei Mongol (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shangdu plotted against Nei Mongol and China. While Nei Mongol and China both followed a zig-zag trend with an overall increase, Shangdu's new street additions followed a zig-zag trend with an overall increase. Most recently, Shangdu's incremental SNDi rose from 2.45 to 2.49 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shangdu ranked 4th out of 43 cities in Nei Mongol and 539th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.49
Rank in China
511th of 1843
Rank in Nei Mongol
11th of 43

Entire Network (Aggregate)

SNDi value
2.44
Rank in China
539th of 1843
Rank in Nei Mongol
4th of 43

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

What about similarly populated cities?

2.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
ShangduAzovNsawam

In new street additions, Shangdu fluctuated in its street-construction patterns, while Azov built increasingly disconnected streets over time and Nsawam built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Shangdu and Azov both became progressively more disconnected, while Nsawam became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Shangdu and Azov have been growing further apart in their street-network character since 1975.