Toliary: region in Madagascar
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 Toliary, Madagascar on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Toliary as of 2014, the overall level of street-network sprawl is 5.56, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 6.19, 5.1, 5.43 and 5.24. Disconnectivity in street construction in Toliary follows a zig-zag trend. In 1976-1990, street construction was most disconnected, while construction was most connected in 1975.
Quantity of street network construction: The street network in Toliary spans a total of 3634 kilometers. The period with the greatest volume of street construction was 1975. These roads have an SNDi of 6.19, 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 6.19, 5.76, 5.72 and 5.56. Overall, the SNDi of the aggregate street network has fallen: the street network in Toliary has become more connected.
The level of street-network sprawl in new development in Toliary followed a zig-zag trend with an overall decrease. To get a sense of how street development has changed in Toliary, we can consider two of its most populous cities: Tsihombe and Toliara. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Tsihombe followed a zig-zag trend. The level of street-network sprawl in new development in Toliara rose steadily.
How do development practices in Toliary fare in comparison to others in Madagascar? Most recently in 2001-2014, street construction in Toliary was the 6th-most disconnected out of the 6 regions in Madagascar. Its position in the ranks since 1975 has fallen; relative to other regions in Madagascar, street construction in Toliary has become more connected. Toliary ranked 1st in 1975, 3rd in 1976-1990, 5th in 1991-2000 and 6th in 2001-2014.
As of 2014, the city with the most disconnected street network in Toliary is Toliara with an SNDi of 3.06, which is in the 40th to 60th percentile of disconnectedness. Conversely, the most connected city is Tsihombe with an SNDi of 2.01, which is relatively well-connected. See trends for these cities: Tsihombe, Toliara
The level of street-network sprawl in the aggregate network in Toliary fell steadily. To get a sense of how the aggregate street network has changed in Toliary, we can consider two of its most populous cities: Tsihombe and Toliara. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Tsihombe rose steadily. The level of street-network sprawl in the aggregate network in Toliara rose steadily.
To date, Toliary is the 3rd-most disconnected out of the 6 regions in Madagascar. Its position in the ranks since 1975 has fallen; relative to other regions in Madagascar, the street network in Toliary has become more connected. Toliary ranked 1st in 1975, 1st in 1976-1990, 1st in 1991-2000 and 3rd in 2001-2014.