Shuitou in context: Street-network sprawl trends

Shuitou in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
ShuitouZhejiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shuitou plotted against Zhejiang and China. The SNDi of new construction in Shuitou was at its lowest in 1976-1990, compared to Zhejiang which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Shuitou's incremental SNDi rose from 2.81 to 3.0 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shuitou ranked 43rd out of 116 cities in Zhejiang and 691st out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.0
Rank in China
884th of 1843
Rank in Zhejiang
63rd of 116

Entire Network (Aggregate)

SNDi value
2.63
Rank in China
691st of 1843
Rank in Zhejiang
43rd 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
ShuitouEnugu UmunzeTurku

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