Batouri 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 Batouri plotted against Est and Cameroon. The SNDi of new construction in Batouri peaked in 1991-2005, compared to Est which rose steadily and Cameroon which rose steadily. Most recently, Batouri's incremental SNDi fell from 3.76 to 3.73 between 1991-2005 and 2006-2020. In terms of the aggregate network, Batouri ranked 1st out of 3 cities in Est and 19th 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?

• Haditha, Iraq
• Banyo, Cameroon
• Huanan, China
• Bishnupur, India
• Meslo, Ethiopia
• Sougueur, Algeria

In new street additions, Batouri built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Haditha built increasingly connected streets over time and Bishnupur fluctuated in its street-construction patterns. For the full network, Batouri became progressively more disconnected, while Haditha became progressively more connected and Bishnupur became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Batouri and Haditha have been converging in their street-network character since 1975.