Laguna: region in Philippines
What exactly constitutes the spatial extent of the city? For these aggregations, we used the Global Human Settlement Layer Urban Center Database (GHS-UCDB) to define the boundaries of the city. These cities -- or urban centers -- cover areas that are densely populated and built-up, and so may extend beyond the spatial borders of these cities that we may be familiar with. The GHS area is shaded in blue.
View Laguna, Philippines on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Laguna as of 2014, the overall level of street-network sprawl is 5.31, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 4.89, 5.34, 5.79 and 5.82. In each period, new street development in Laguna steadily grows more disconnected than in the last. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.45 points, but between 1991-2000 and 2001-2014, it rose by just 0.02.
Quantity of street network construction: The street network in Laguna spans a total of 6348 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 5.34, which is highly disconnected.
Effect on the aggregate network: New construction in each period adds to the total stock of streets, but does not change streets that have already been built. Therefore, it has a limited effect on the street network as a whole. The SNDis of the aggregate street network in the respective time periods are 4.89, 5.23, 5.27 and 5.31. Overall, the SNDi of the aggregate street network has risen: the street network in Laguna has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.34 points, but between 1991-2000 and 2001-2014, it rose by just 0.05.
The level of street-network sprawl in new development in Laguna rose steadily. To get a sense of how street development has changed in Laguna, we can consider three of its most populous cities: San Pablo, Santa Cruz and Calauan. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in San Pablo peaked in 1991-2000. The level of street-network sprawl in new development in Santa Cruz followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Calauan was at its lowest in 1991-2000.
How do development practices in Laguna fare in comparison to others in Philippines? Most recently in 2001-2014, street construction in Laguna was the 27th-most disconnected out of the 51 regions in Philippines. Its position in the ranks since 1975 has fallen; relative to other regions in Philippines, street construction in Laguna has become more connected. Laguna ranked 12th in 1975, 15th in 1976-1990, 23rd in 1991-2000 and 27th in 2001-2014.
As of 2014, the city with the most disconnected street network in Laguna is San Pablo with an SNDi of 4.84, which is highly disconnected. Conversely, the most connected city is Calauan with an SNDi of 3.36, which is highly disconnected. See trends for these cities: Calauan, San Pablo
The level of street-network sprawl in the aggregate network in Laguna rose steadily. To get a sense of how the aggregate street network has changed in Laguna, we can consider three of its most populous cities: San Pablo, Santa Cruz and Calauan. Out of the three cities, Santa Cruz and Calauan do not follow the same trend as the region. The level of street-network sprawl in the aggregate network in Santa Cruz was at its lowest in 1976-1990. The level of street-network sprawl in the aggregate network in Calauan was at its lowest in 1991-2000.
To date, Laguna is the 18th-most disconnected out of the 51 regions in Philippines. Its position in the ranks since 1975 has fallen; relative to other regions in Philippines, the street network in Laguna has become more connected. Laguna ranked 12th in 1975, 14th in 1976-1990, 14th in 1991-2000 and 18th in 2001-2014.