Chayab 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 Chayab plotted against Takhar and Afghanistan. The SNDi of new construction in Chayab was at its lowest in 1991-2005, compared to Takhar which was at its lowest in 1991-2005 and Afghanistan which followed a zig-zag trend with an overall increase. Most recently, Chayab's incremental SNDi rose from 2.96 to 4.65 between 1991-2005 and 2006-2020. In terms of the aggregate network, Chayab ranked 2nd out of 4 cities in Takhar and 52nd out of 73 in Afghanistan as of 2020.

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

What about similarly populated cities?

• Longjing, China
• Dhrangadhra, India
• Sagwara, India
• Sattahip, Thailand
• Akinima, Nigeria
• Siyana, India

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