Ruyang County 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 Ruyang County plotted against Henan and China. The SNDi of new construction in Ruyang County peaked in 1976-1990, compared to Henan which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Ruyang County's incremental SNDi fell from 8.0 to 4.11 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ruyang County ranked 128th out of 129 cities in Henan and 1823rd 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?

• Shevgaon, India
• Sitarganj, India
• Torrevieja, Spain
• Jaggayyapeta, India
• Kabalo, Democratic Republic of the Congo
• Panglong, Myanmar

In new street additions, Ruyang County and Jaggayyapeta both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Shevgaon built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Ruyang County grew more disconnected from 1975 through 1991-2005, then improved, while Shevgaon became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Jaggayyapeta became progressively more disconnected. Ruyang County and Shevgaon have been growing further apart in their street-network character since 1975.