Fotang in context: Street-network sprawl trends

Fotang in context

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
FotangZhejiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Fotang plotted against Zhejiang and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Fotang's incremental SNDi rose from 2.01 to 3.67 between 1991-2005 and 2006-2020. In terms of the aggregate network, Fotang ranked 42nd out of 116 cities in Zhejiang and 689th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.67
Rank in China
1233rd of 1843
Rank in Zhejiang
80th of 116

Entire Network (Aggregate)

SNDi value
2.63
Rank in China
689th of 1843
Rank in Zhejiang
42nd 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
FotangHourSixian

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