Shangpan in context: Street-network sprawl trends

Shangpan in context

3.244.85.6<19751976–19901991–20052006–2020SNDi of street additions
3.244.85.6<19751976–19901991–20052006–2020SNDi of entire street network
ShangpanZhejiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shangpan plotted against Zhejiang and China. The SNDi of new construction in Shangpan peaked in 1991-2005, 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, Shangpan's incremental SNDi fell from 5.54 to 5.04 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shangpan ranked 107th out of 116 cities in Zhejiang and 1727th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
5.04
Rank in China
1642nd of 1843
Rank in Zhejiang
106th of 116

Entire Network (Aggregate)

SNDi value
5.04
Rank in China
1727th of 1843
Rank in Zhejiang
107th 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
ShangpanKizilyurtLongyao

In new street additions, Shangpan built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Kizilyurt built increasingly connected streets over time and Longyao built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Shangpan became progressively more disconnected, while Kizilyurt became progressively more connected and Longyao grew more disconnected from 1975 through 1991-2005, then improved. Notably, Shangpan had a more connected network than Kizilyurt in 1975 but the two have since reversed their relative ranking.