Edéa 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 Edéa plotted against Littoral and Cameroon. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Edéa's incremental SNDi rose from 5.5 to 7.96 between 1991-2005 and 2006-2020. In terms of the aggregate network, Edéa ranked 3rd out of 3 cities in Littoral and 39th out of 44 in Cameroon as of 2020.

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

What about similarly populated cities?

• Kaiyang, China
• Toboali, Indonesia
• Xiaoguan, China
• Vavoua, Côte d'Ivoire
• Bloomington, United States
• Lalpur, India

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