Allai 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 Allai plotted against Khyber-Pakhtunkhwa and Pakistan. The SNDi of new construction in Allai followed a zig-zag trend with an overall increase, compared to Khyber-Pakhtunkhwa which followed a zig-zag trend with an overall increase and Pakistan which followed a zig-zag trend with an overall increase. Most recently, Allai's incremental SNDi fell from 8.91 to 8.43 between 1991-2005 and 2006-2020. In terms of the aggregate network, Allai ranked 57th out of 67 cities in Khyber-Pakhtunkhwa and 278th out of 292 in Pakistan as of 2020.

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

• Ledong Li Autonomous County, China
• Chimyon, Uzbekistan
• Yuanjiang, China
• Shangguancun, China
• Thakurganj, India
• Cuyahoga Falls, United States

In new street additions, Allai fluctuated in its street-construction patterns, while Ledong Li Autonomous County fluctuated in its street-construction patterns and Shangguancun built increasingly connected streets over time. For the full network, Allai became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Ledong Li Autonomous County fluctuated in connectivity and Shangguancun became progressively more connected. Allai and Shangguancun have been growing further apart in their street-network character since 1975.