Sanghar 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 Sanghar plotted against Sindh and Pakistan. The SNDi of new construction in Sanghar peaked in 1991-2005, compared to Sindh which followed a zig-zag trend with an overall increase and Pakistan which followed a zig-zag trend with an overall increase. Most recently, Sanghar's incremental SNDi fell from 2.94 to 1.53 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sanghar ranked 11th out of 50 cities in Sindh and 28th 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?

• Erdaojiang, China
• Villanueva, Honduras
• Alamata, Ethiopia
• Jalapa, Guatemala
• Wangjiazhai, China
• Fateh Jang, Pakistan

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