Qianku in context: Street-network sprawl trends

Qianku in context

3.23.644.4<19751976–19901991–20052006–2020SNDi of street additions
3.23.644.4<19751976–19901991–20052006–2020SNDi of entire street network
QiankuZhejiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Qianku plotted against Zhejiang and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Qianku's incremental SNDi rose from 3.36 to 3.89 between 1991-2005 and 2006-2020. In terms of the aggregate network, Qianku ranked 80th out of 116 cities in Zhejiang and 1322nd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.89
Rank in China
1351st of 1843
Rank in Zhejiang
86th of 116

Entire Network (Aggregate)

SNDi value
3.42
Rank in China
1322nd of 1843
Rank in Zhejiang
80th of 116

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
QiankuAshoknagarBengkalis

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