Centre: region in Togo
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 Centre, Togo on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Centre as of 2014, the overall level of street-network sprawl is 2.56, which is in the 40th to 60th percentile of disconnectedness.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.37, 3.94, 2.53 and 2.9. Disconnectivity in street construction in Centre follows a zig-zag trend. In 1975, street construction was most disconnected, while construction was most connected in 1976-1990.
Quantity of street network construction: The street network in Centre spans a total of 1611 kilometers. The period with the greatest volume of street construction was 2001-2014. These roads have an SNDi of 2.9, which is in the 40th to 60th percentile of disconnectedness.
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 1.37, 2.39, 2.47 and 2.56. Overall, the SNDi of the aggregate street network has risen: the street network in Centre has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 1.02 points, but between 1991-2000 and 2001-2014, it rose by just 0.09.
The level of street-network sprawl in new development in Centre followed a zig-zag trend with an overall increase. To get a sense of how street development has changed in Centre, we can consider three of its most populous cities: Sokodé, Blitta-Gare and Tchamba. Out of the three cities, Blitta-Gare and Tchamba do not follow the same trend as the region. The level of street-network sprawl in new development in Blitta-Gare followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Tchamba peaked in 1991-2000.
How do development practices in Centre fare in comparison to others in Togo? Most recently in 2001-2014, street construction in Centre was the 4th-most disconnected out of the 5 regions in Togo. Its position in the ranks since 1975 has fallen; relative to other regions in Togo, street construction in Centre has become more connected. Centre ranked 3rd in 1975, 1st in 1976-1990, 2nd in 1991-2000 and 4th in 2001-2014.
As of 2014, the city with the most disconnected street network in Centre is Sokodé with an SNDi of 1.96, which is relatively well-connected. Conversely, the most connected city is Tchamba with an SNDi of -0.13, which is very well-connected. See trends for these cities: Tchamba, Sokodé
The level of street-network sprawl in the aggregate network in Centre rose steadily. To get a sense of how the aggregate street network has changed in Centre, we can consider three of its most populous cities: Sokodé, Blitta-Gare and Tchamba. Out of the three cities, Blitta-Gare and Tchamba do not follow the same trend as the region. The level of street-network sprawl in the aggregate network in Blitta-Gare rose steadily. The level of street-network sprawl in the aggregate network in Tchamba peaked in 1991-2000.
To date, Centre is the 2nd-most disconnected out of the 5 regions in Togo. Its position in the ranks since 1975 has risen; relative to other regions in Togo, the street network in Centre has become more disconnected. Centre ranked 3rd in 1975, 2nd in 1976-1990, 2nd in 1991-2000 and 2nd in 2001-2014.