Lingpu in context: Street-network sprawl trends

Lingpu in context

3.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
3.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
LingpuZhejiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lingpu plotted against Zhejiang and China. The SNDi of new construction in Lingpu peaked 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, Lingpu's incremental SNDi fell from 4.9 to 4.74 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lingpu ranked 105th out of 116 cities in Zhejiang and 1702nd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.74
Rank in China
1580th of 1843
Rank in Zhejiang
101st of 116

Entire Network (Aggregate)

SNDi value
4.81
Rank in China
1702nd of 1843
Rank in Zhejiang
105th 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
LingpuYanggaoRamos Arizpe

In new street additions, Lingpu built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Yanggao built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns and Ramos Arizpe built increasingly disconnected streets over time. For the full network, Lingpu grew more disconnected from 1975 through 1991-2005, then improved, while Yanggao grew more disconnected from 1975 through 1976-1990, then improved and Ramos Arizpe became progressively more disconnected. Lingpu and Yanggao have been growing further apart in their street-network character since 1975.