Jieshi 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 Jieshi plotted against Guangdong and China. The SNDi of new construction in Jieshi peaked in 1976-1990, compared to Guangdong which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Jieshi's incremental SNDi fell from 4.76 to 4.63 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jieshi ranked 108th out of 133 cities in Guangdong as of 2020.

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

What about similarly populated cities?

• Brunswick, Germany
• Zaoyang, China
• Nazareth, Israel
• Qidong, China
• Шелепино, Russia
• Diourbel, Senegal

In new street additions, Jieshi and Qidong both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Brunswick built increasingly disconnected streets over time. For the full network, Jieshi grew more disconnected from 1975 through 1991-2005, then improved, while Brunswick became progressively more disconnected and Qidong grew more disconnected from 1975 through 1976-1990, then improved. Jieshi and Qidong have been growing further apart in their street-network character since 1975.