Jingning 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 Jingning plotted against Gansu and China. The SNDi of new construction in Jingning peaked in 1976-1990, compared to Gansu which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Jingning's incremental SNDi fell from 5.84 to 5.53 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jingning ranked 28th out of 29 cities in Gansu and 1805th 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?

• Xinhuang, China
• Shwegu, Myanmar
• Keshan, China
• Xiaducun, China
• Rybnitsa, Moldova
• Jezqazğan, Kazakhstan

While Xinhuang and Xiaducun both built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, Jingning built increasingly disconnected streets from 1975 through 1976-1990, then improved in new street additions. Looking at the full network, Xinhuang and Xiaducun both became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Jingning grew more disconnected from 1975 through 1976-1990, then improved. Notably, Jingning had a more connected network than Xiaducun in 1975 but the two have since reversed their relative ranking.