Zhangbei in context: Street-network sprawl trends

Zhangbei in context

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
ZhangbeiHebei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zhangbei plotted against Hebei and China. The SNDi of new construction in Zhangbei peaked in 1991-2005, 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, Zhangbei's incremental SNDi fell from 1.85 to 1.72 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zhangbei ranked 3rd out of 120 cities in Hebei and 102nd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
1.72
Rank in China
123rd of 1843
Rank in Hebei
2nd of 120

Entire Network (Aggregate)

SNDi value
1.71
Rank in China
102nd of 1843
Rank in Hebei
3rd 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
ZhangbeiXinshaoMatabhanga

In new street additions, Zhangbei built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Xinshao fluctuated in its street-construction patterns and Matabhanga fluctuated in its street-construction patterns. For the full network, Zhangbei became progressively more disconnected, while Xinshao grew more disconnected from 1975 through 1976-1990, then improved and Matabhanga fluctuated in connectivity.