Porbandar 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 Porbandar plotted against Gujarat and India. The SNDi of new construction in Porbandar rose steadily, compared to Gujarat which rose steadily and India which followed a zig-zag trend with an overall increase. Most recently, Porbandar's incremental SNDi rose from 4.32 to 4.79 between 1991-2005 and 2006-2020. In terms of the aggregate network, Porbandar ranked 39th out of 92 cities in Gujarat and 662nd 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?

• Meihekou, China
• Bahawalnagar, Pakistan
• Jimma, Ethiopia
• Sikandarabad, India
• Ughelli, Nigeria
• Dibrugarh, India

In new street additions, Porbandar built increasingly disconnected streets over time, while Meihekou built increasingly disconnected streets from 1975 through 1976-1990, then improved and Sikandarabad fluctuated in its street-construction patterns. For the full network, Porbandar became progressively more disconnected, while Meihekou grew more disconnected from 1975 through 1991-2005, then improved and Sikandarabad became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Porbandar had a more connected network than Meihekou in 1975 but the two have since reversed their relative ranking.