Haining in context: Street-network sprawl trends

Haining in context

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
HainingZhejiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Haining plotted against Zhejiang and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Haining's incremental SNDi rose from 3.05 to 5.61 between 1991-2005 and 2006-2020. In terms of the aggregate network, Haining ranked 106th out of 116 cities in Zhejiang and 1716th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
5.61
Rank in China
1715th of 1843
Rank in Zhejiang
112th of 116

Entire Network (Aggregate)

SNDi value
4.94
Rank in China
1716th of 1843
Rank in Zhejiang
106th of 116

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
HainingTimaMoundou

In new street additions, Haining fluctuated in its street-construction patterns, while Tima fluctuated in its street-construction patterns and Moundou built increasingly disconnected streets over time. For the full network, Haining and Moundou both became progressively more disconnected, while Tima became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Haining had a more connected network than Tima in 1975 but the two have since reversed their relative ranking.