Albay: 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 Albay, Philippines on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Albay as of 2014, the overall level of street-network sprawl is 5.38, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 5.07, 2.7, 6.46 and 6.56. The disconnectivity of new streets constructed in Albay fell, then rose. In 1976-1990, new street layouts were the most connected.
Quantity of street network construction: The street network in Albay spans a total of 3157 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 5.07, 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 5.07, 5.09, 5.17 and 5.38. Overall, the SNDi of the aggregate street network has risen: the street network in Albay has become more disconnected.
The level of street-network sprawl in new development in Albay was at its lowest in 1976-1990. To get a sense of how street development has changed in Albay, we can consider two of its most populous cities: Legazpi and Tabaco. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Legazpi followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Tabaco followed a zig-zag trend with an overall increase.
How do development practices in Albay fare in comparison to others in Philippines? Most recently in 2001-2014, street construction in Albay was the 12th-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 Albay has become more connected. Albay ranked 9th in 1975, 49th in 1976-1990, 16th in 1991-2000 and 12th in 2001-2014.
As of 2014, the city with the most disconnected street network in Albay is Legazpi with an SNDi of 5.7, which is highly disconnected. Conversely, the most connected city is Tabaco with an SNDi of 4.3, which is highly disconnected. See trends for these cities: Tabaco, Legazpi
The level of street-network sprawl in the aggregate network in Albay rose steadily. To get a sense of how the aggregate street network has changed in Albay, we can consider two of its most populous cities: Legazpi and Tabaco. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Legazpi rose steadily. The level of street-network sprawl in the aggregate network in Tabaco rose steadily.
To date, Albay is the 14th-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 Albay has become more connected. Albay ranked 9th in 1975, 17th in 1976-1990, 17th in 1991-2000 and 14th in 2001-2014.