Chengtougu in context: Street-network sprawl trends

Chengtougu in context

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
ChengtouguTianjin (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Chengtougu plotted against Tianjin and China. The SNDi of new construction in Chengtougu rose steadily, compared to Tianjin which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Chengtougu's incremental SNDi rose from 2.83 to 3.75 between 1991-2005 and 2006-2020. In terms of the aggregate network, Chengtougu ranked 11th out of 16 cities in Tianjin and 1273rd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.75
Rank in China
1284th of 1843
Rank in Tianjin
11th of 16

Entire Network (Aggregate)

SNDi value
3.34
Rank in China
1273rd of 1843
Rank in Tianjin
11th of 16

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
ChengtouguDehriIskenderun

In new street additions, Chengtougu and Dehri both built increasingly disconnected streets over time, while İskenderun fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Notably, Chengtougu had a more connected network than İskenderun in 1975 but the two have since reversed their relative ranking.