Dalla 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 Dalla plotted against Uttar Pradesh and India. The SNDi of new construction in Dalla peaked in 1991-2005, compared to Uttar 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, Dalla's incremental SNDi fell from 6.12 to 5.47 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dalla ranked 245th out of 291 cities in Uttar Pradesh and 1574th 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?

• Sumedang, Indonesia
• Sarajevo, Bosnia and Herzegovina
• Balurghat, India
• Saransk, Russia
• Karur, India
• Centurion, South Africa

In new street additions, Dalla built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Sumedang fluctuated in its street-construction patterns and Saransk built increasingly disconnected streets over time. For the full network, Dalla grew more disconnected from 1975 through 1991-2005, then improved, while Sumedang fluctuated in connectivity and Saransk became progressively more disconnected. Dalla and Sumedang have been converging in their street-network character since 1975.