Damaiyu in context: Street-network sprawl trends

Damaiyu in context

468<19751976–19901991–20052006–2020SNDi of street additions
468<19751976–19901991–20052006–2020SNDi of entire street network
DamaiyuZhejiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Damaiyu plotted against Zhejiang and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Damaiyu's incremental SNDi rose from 6.53 to 8.34 between 1991-2005 and 2006-2020. In terms of the aggregate network, Damaiyu ranked 113th out of 116 cities in Zhejiang and 1809th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
8.34
Rank in China
1813th of 1843
Rank in Zhejiang
115th of 116

Entire Network (Aggregate)

SNDi value
6.62
Rank in China
1809th of 1843
Rank in Zhejiang
113th of 116

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
DamaiyuLuncangKuznetsk

In new street additions, Damaiyu fluctuated in its street-construction patterns, while Luncang built increasingly disconnected streets over time and Kuznetsk built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Damaiyu and Kuznetsk have been growing further apart in their street-network character since 1975.