Tubruq 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 Tubruq plotted against Al Butnan and Libya. The SNDi of new construction in Tubruq followed a zig-zag trend with an overall increase, compared to Al Butnan which followed a zig-zag trend with an overall increase and Libya which peaked in 1976-1990. Most recently, Tubruq's incremental SNDi rose from 2.36 to 3.2 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tubruq ranked 1st out of 1 cities in Al Butnan and 7th out of 13 in Libya as of 2020.

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

What about similarly populated cities?

• Bati, Ethiopia
• Luhe, China
• Pengshui, China
• Kallakurichi, India
• Kaijiang, China
• Sillod, India

In new street additions, Tubruq fluctuated in its street-construction patterns, while Bati built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and Kallakurichi built increasingly disconnected streets over time. For the full network, Tubruq and Kallakurichi both became progressively more disconnected, while Bati became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Tubruq and Bati have been growing further apart in their street-network character since 1975.