Nijoni 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 Nijoni plotted against Sughd and Tajikistan. The SNDi of new construction in Nijoni followed a zig-zag trend with an overall decrease, compared to Sughd which rose steadily and Tajikistan which followed a zig-zag trend with an overall increase. Most recently, Nijoni's incremental SNDi fell from 1.6 to 1.52 between 1991-2005 and 2006-2020. In terms of the aggregate network, Nijoni ranked 1st out of 8 cities in Sughd and 1st 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?

• Kolasib, India
• Liberia, Costa Rica
• Al Beidha, Yemen
• Elmina, Ghana
• Bahadurganj, India
• Ozumba de Alzate, México

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