Gaoyi in context: Street-network sprawl trends

Gaoyi in context

2.43.24<19751976–19901991–20052006–2020SNDi of street additions
2.43.24<19751976–19901991–20052006–2020SNDi of entire street network
GaoyiHebei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Gaoyi plotted against Hebei and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Gaoyi's incremental SNDi rose from 2.59 to 2.98 between 1991-2005 and 2006-2020. In terms of the aggregate network, Gaoyi ranked 30th out of 120 cities in Hebei and 564th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.98
Rank in China
866th of 1843
Rank in Hebei
48th of 120

Entire Network (Aggregate)

SNDi value
2.48
Rank in China
564th of 1843
Rank in Hebei
30th of 120

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
GaoyiFatehabadJihongtan

In new street additions, Gaoyi and Fatehabad both fluctuated in its street-construction patterns, while Jihongtan built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Gaoyi became progressively more disconnected, while Fatehabad fluctuated in connectivity and Jihongtan grew more disconnected from 1975 through 1976-1990, then improved. Notably, Gaoyi had a more sprawly network than Fatehabad in 1975 but the two have since reversed their relative ranking.