San Carlos 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 San Carlos plotted against Negros Occidental and Philippines. The SNDi of new construction in San Carlos was at its lowest in 1991-2005, compared to Negros Occidental which was at its lowest in 1991-2005 and Philippines which rose steadily. Most recently, San Carlos's incremental SNDi rose from 2.63 to 3.37 between 1991-2005 and 2006-2020. In terms of the aggregate network, San Carlos ranked 1st out of 4 cities in Negros Occidental as of 2020.

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

What about similarly populated cities?

• Artemisa, Cuba
• Charanchi, Nigeria
• Gannaur, India
• Lushui, China
• Makanza, Democratic Republic of the Congo
• Malacatán, Guatemala

While Artemisa and Lushui both fluctuated in its street-construction patterns, San Carlos built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns in new street additions. For the full network, San Carlos became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Artemisa became progressively more disconnected and Lushui grew more disconnected from 1975 through 1976-1990, then improved. Notably, San Carlos had a more sprawly network than Lushui in 1975 but the two have since reversed their relative ranking.