Minggang 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 Minggang plotted against Henan and China. The SNDi of new construction in Minggang was at its lowest 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, Minggang's incremental SNDi rose from 3.56 to 4.99 between 1991-2005 and 2006-2020. In terms of the aggregate network, Minggang ranked 120th out of 129 cities in Henan and 1340th 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?

• Yun, China
• Raver, India
• Maynaguri, India
• Chettia, Algeria
• Kaliyaganj, India
• Mahera, Sierra Leone

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