Jammalamadugu 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 Jammalamadugu plotted against Andhra Pradesh and India. The SNDi of new construction in Jammalamadugu was at its lowest in 1976-1990, 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, Jammalamadugu's incremental SNDi rose from 4.64 to 6.35 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jammalamadugu ranked 84th out of 91 cities in Andhra Pradesh and 1301st 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?

• Chagalnaiya, Bangladesh
• Cerro de Pasco, Peru
• Modderspruit, South Africa
• T'aet'an-eup, North Korea
• Batusangkar, Indonesia
• Ekenobizi, Nigeria

In new street additions, Jammalamadugu built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Chagalnaiya fluctuated in its street-construction patterns and T'aet'an-eup built increasingly disconnected streets over time. For the full network, Jammalamadugu became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Chagalnaiya became progressively more disconnected and T'aet'an-eup became progressively more disconnected.