Virac 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 Virac plotted against Catanduanes and Philippines. The SNDi of new construction in Virac was at its lowest in 1976-1990, compared to Catanduanes which was at its lowest in 1976-1990 and Philippines which rose steadily. Most recently, Virac's incremental SNDi rose from 4.13 to 5.63 between 1991-2005 and 2006-2020. In terms of the aggregate network, Virac ranked 1st out of 1 cities in Catanduanes and 25th 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?

• Laukkaing, Myanmar
• Ústí nad Labem, Czechia
• Longyao, China
• Arang, India
• North College Hill, United States
• Linares, México

In new street additions, Virac and Arang both built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Laukkaing built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Virac and Arang both became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Laukkaing became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Virac and Laukkaing have been converging in their street-network character since 1975.