Issia 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 Issia plotted against Sassandra-Marahoué and Côte d'Ivoire. The SNDi of new construction in Issia rose steadily, compared to Sassandra-Marahoué which followed a zig-zag trend with an overall increase and Côte d'Ivoire which followed a zig-zag trend with an overall increase. Most recently, Issia's incremental SNDi rose from 2.28 to 3.09 between 1991-2005 and 2006-2020. In terms of the aggregate network, Issia ranked 4th out of 7 cities in Sassandra-Marahoué and 10th out of 39 in Côte d'Ivoire as of 2020.

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

What about similarly populated cities?

• Panji, China
• Žilina, Slovakia
• Talavera, Philippines
• Paralakhemundi, India
• Douai, France
• Zirbi, Egypt

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