Vapi 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 Vapi plotted against Gujarat and India. The SNDi of new construction in Vapi rose steadily, compared to Gujarat which rose steadily and India which followed a zig-zag trend with an overall increase. Most recently, Vapi's incremental SNDi rose from 4.42 to 5.77 between 1991-2005 and 2006-2020. In terms of the aggregate network, Vapi ranked 64th out of 92 cities in Gujarat and 1104th 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?

• Taxila, Pakistan
• Norfolk, United States
• Londrina, Brazil
• Kingston, Jamaica
• Dhule, India
• Thalassery, India

In new street additions, Vapi built increasingly disconnected streets over time, while Taxila built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns and Kingston built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Vapi and Kingston both became progressively more disconnected, while Taxila became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Vapi and Taxila have been converging in their street-network character since 1975.