Rosario 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 Rosario plotted against Batangas and Philippines. The SNDi of new construction in Rosario peaked in 1991-2005, compared to Batangas which rose steadily and Philippines which rose steadily. Most recently, Rosario's incremental SNDi fell from 6.49 to 6.29 between 1991-2005 and 2006-2020. In terms of the aggregate network, Rosario ranked 4th out of 6 cities in Batangas and 99th out of 114 in Philippines as of 2020.

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

What about similarly populated cities?

• Ugba, Nigeria
• Lower Hutt, New Zealand
• Ye, Myanmar
• Iglas, India
• Pagar Alam, Indonesia
• Torrevieja, Spain

In new street additions, Rosario built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Ugba fluctuated in its street-construction patterns and Iglas built increasingly disconnected streets over time. For the full network, Rosario and Iglas both became progressively more disconnected, while Ugba fluctuated in connectivity. Rosario and Ugba have been growing further apart in their street-network character since 1975.