Ngodo 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 Ngodo plotted against Abia and Nigeria. The SNDi of new construction in Ngodo peaked in 1991-2005, compared to Abia which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Ngodo's incremental SNDi fell from 5.17 to 4.37 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ngodo ranked 4th out of 9 cities in Abia and 255th out of 422 in Nigeria as of 2020.

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

What about similarly populated cities?

• Assis, Brazil
• Ioannina, Greece
• Mafuo, Democratic Republic of the Congo
• Presidencia Roque Sáenz Peña, Argentina
• Sagwara, India
• Dhrangadhra, India

In new street additions, Ngodo built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Assis built increasingly disconnected streets over time and Presidencia Roque Sáenz Peña fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Ngodo and Presidencia Roque Sáenz Peña have been growing further apart in their street-network character since 1975.