Dibrugarh 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 Dibrugarh plotted against Assam and India. The SNDi of new construction in Dibrugarh peaked in 1991-2005, compared to Assam which rose steadily and India which followed a zig-zag trend with an overall increase. Most recently, Dibrugarh's incremental SNDi fell from 5.91 to 5.68 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dibrugarh ranked 35th out of 67 cities in Assam and 1277th 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?

• Ughelli, Nigeria
• Sikandarabad, India
• Porbandar, India
• Cotabato City, Philippines
• Wendeng, China
• Dazhuang, Taiwan

While Ughelli and Cotabato City both built increasingly disconnected streets over time, Dibrugarh built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. For the full street network, though, all three cities follow the same trend. Notably, Dibrugarh had a more sprawly network than Cotabato City in 1975 but the two have since reversed their relative ranking.