Comparisons

3.64.55.46.3<19751976–19901991–20052006–2020SNDi of street additions
3.64.55.46.3<19751976–19901991–20052006–2020SNDi of entire street network
IsabelaIlocos NorteIlocos Sur

Isabela vs. the other two most closely populated regions in Philippines: Ilocos Norte and Ilocos Sur

Isabela in context: Street-network sprawl of new development

The level of street-network sprawl in new development in Isabela rose steadily. To get a sense of how street development has changed in Isabela, we can consider one of its most populous cities: Santiago. Disconnectivity in the most populous cities in Isabela follow the same region trend.

How do development practices in Isabela fare in comparison to others in Philippines? Most recently in 2006-2020, street construction in Isabela was the 15th-most disconnected out of the 57 regions in Philippines. Its position in the ranks since 1975 has fallen; relative to other regions in Philippines, street construction in Isabela has become more connected. Isabela ranked 5th in 1975, 10th in 1976-1990, 15th in 1991-2005 and 15th in 2006-2020.

Isabela in context: Aggregate street-network sprawl

As of 2020, the city with the most disconnected street network in Isabela is Santiago with an SNDi of 3.71, which is relatively sprawly. Conversely, the most connected city is Santiago with an SNDi of 3.71, which is relatively sprawly. See trends for these cities: Santiago, Santiago

The level of street-network sprawl in the aggregate network in Isabela rose steadily. To get a sense of how the aggregate street network has changed in Isabela, we can consider one of its most populous cities: Santiago. Disconnectivity in the most populous cities in Isabela follow the same region trend.

To date, Isabela is the 7th-most disconnected out of the 57 regions in Philippines. Its position in the ranks since 1975 has fallen; relative to other regions in Philippines, the street network in Isabela has become more connected. Isabela ranked 5th in 1975, 7th in 1976-1990, 8th in 1991-2005 and 7th in 2006-2020.