Longjing in context: Street-network sprawl trends

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Longjing plotted against Jilin and China. While Jilin and China both followed a zig-zag trend with an overall increase, Longjing's new street additions followed a zig-zag trend with an overall increase. Most recently, Longjing's incremental SNDi rose from 3.15 to 7.42 between 1991-2005 and 2006-2020. In terms of the aggregate network, Longjing ranked 22nd out of 47 cities in Jilin and 680th out of 1843 in China as of 2020.

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

• Dhrangadhra, India
• Sagwara, India
• Presidencia Roque Sáenz Peña, Argentina
• Chayab, Afghanistan
• Sattahip, Thailand
• Akinima, Nigeria

While Dhrangadhra and Chayab both built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, Longjing fluctuated in its street-construction patterns in new street additions. For the full network, Longjing fluctuated in connectivity, while Dhrangadhra became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards and Chayab grew more disconnected from 1975 through 1976-1990, then improved. Longjing and Dhrangadhra have been converging in their street-network character since 1975.