Hisor 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 Hisor plotted against Districts of Republican Subordin and Tajikistan. The SNDi of new construction in Hisor peaked in 1976-1990, compared to Districts of Republican Subordin which rose steadily and Tajikistan which followed a zig-zag trend with an overall increase. Most recently, Hisor's incremental SNDi fell from 6.07 to 5.71 between 1991-2005 and 2006-2020. In terms of the aggregate network, Hisor ranked 2nd out of 4 cities in Districts of Republican Subordin and 19th out of 22 in Tajikistan as of 2020.

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

What about similarly populated cities?

• Biruaca, Venezuela
• Ashkelon, Israel
• Tanchon, North Korea
• Aalborg, Denmark
• Koh-i-Sayad, Afghanistan
• Mtwara, Tanzania

In new street additions, Hisor built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Biruaca built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and Aalborg built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Hisor grew more disconnected from 1975 through 1991-2005, then improved, while Biruaca became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Aalborg became progressively more disconnected.