Zhengding in context: Street-network sprawl trends

Zhengding in context

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
ZhengdingHebei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zhengding plotted against Hebei and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Zhengding's incremental SNDi rose from 3.21 to 3.72 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zhengding ranked 65th out of 120 cities in Hebei and 1003rd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.72
Rank in China
1264th of 1843
Rank in Hebei
73rd of 120

Entire Network (Aggregate)

SNDi value
2.97
Rank in China
1003rd of 1843
Rank in Hebei
65th of 120

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
ZhengdingNoaparaSimao

In new street additions, Zhengding and Noapara both fluctuated in its street-construction patterns, while Simao built increasingly disconnected streets over time. For the full network, Zhengding and Simao both became progressively more disconnected, while Noapara fluctuated in connectivity. Notably, Zhengding had a more sprawly network than Simao in 1975 but the two have since reversed their relative ranking.