Tang'erli in context: Street-network sprawl trends

Tang'erli 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
Tang'erliHebei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tang'erli plotted against Hebei and China. The SNDi of new construction in Tang'erli rose steadily, compared to Hebei which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Tang'erli's incremental SNDi rose from 2.97 to 4.02 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tang'erli ranked 56th out of 120 cities in Hebei and 914th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.02
Rank in China
1408th of 1843
Rank in Hebei
90th of 120

Entire Network (Aggregate)

SNDi value
2.86
Rank in China
914th of 1843
Rank in Hebei
56th of 120

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
Tang'erliTaipaPeixian

In new street additions, Tang'erli built increasingly disconnected streets over time, while Taipa built increasingly disconnected streets from 1975 through 1991-2005, then improved and Peixian built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Tang'erli became progressively more disconnected, while Taipa grew more disconnected from 1975 through 1991-2005, then improved and Peixian became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Tang'erli and Peixian have been growing further apart in their street-network character since 1975.