Nidadavolu 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 Nidadavolu plotted against Andhra Pradesh and India. The SNDi of new construction in Nidadavolu rose steadily, compared to Andhra Pradesh which followed a zig-zag trend with an overall increase and India which followed a zig-zag trend with an overall increase. Most recently, Nidadavolu's incremental SNDi rose from 4.72 to 6.6 between 1991-2005 and 2006-2020. In terms of the aggregate network, Nidadavolu ranked 81st out of 91 cities in Andhra Pradesh and 1215th out of 1868 in India as of 2020.

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

What about similarly populated cities?

• Maïné-Soroa, Niger
• Padra, India
• Kuancheng, China
• Weiqiao, China
• Colmar, France
• Kachhwa, India

While Maïné-Soroa and Weiqiao both built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, Nidadavolu built increasingly disconnected streets over time in new street additions. For the full network, Nidadavolu became progressively more disconnected, while Maïné-Soroa became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards and Weiqiao became progressively more connected. Notably, Nidadavolu had a more connected network than Weiqiao in 1975 but the two have since reversed their relative ranking.