Bikoro 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 Bikoro plotted against Équateur and Democratic Republic of the Congo. The SNDi of new construction in Bikoro rose steadily, compared to Équateur which rose steadily and Democratic Republic of the Congo which followed a zig-zag trend with an overall increase. Most recently, Bikoro's incremental SNDi rose from 2.48 to 2.8 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bikoro ranked 1st out of 4 cities in Équateur and 29th out of 186 in Democratic Republic of the Congo as of 2020.

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

What about similarly populated cities?

• Agbani, Nigeria
• Ghayl Ba Wazir, Yemen
• Ushirombo, Tanzania
• Meti Chafi / Tilk u Meti, Ethiopia
• Daraw, Egypt
• Vaudreuil-Dorion, Canada

In new street additions, Bikoro built increasingly disconnected streets over time, while Agbani built increasingly disconnected streets from 1975 through 1991-2005, then improved and Meti Chafi / Tilk u Meti fluctuated in its street-construction patterns. For the full network, Bikoro became progressively more disconnected, while Agbani grew more disconnected from 1975 through 1991-2005, then improved and Meti Chafi / Tilk u Meti fluctuated in connectivity. Bikoro and Agbani have been growing further apart in their street-network character since 1975.