Est: region in Cameroon
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 Est, Cameroon on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Est as of 2014, the overall level of street-network sprawl is 4.48, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 3.1, 3.4, 4.95 and 5.97. In each period, new street development in Est steadily grows more disconnected than in the last.
Quantity of street network construction: The street network in Est spans a total of 8489 kilometers. The period with the greatest volume of street construction was 1976-1990. These roads have an SNDi of 3.4, 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 3.1, 3.25, 3.79 and 4.48. Overall, the SNDi of the aggregate street network has risen: the street network in Est has become more disconnected.
The level of street-network sprawl in new development in Est rose steadily. To get a sense of how street development has changed in Est, we can consider three of its most populous cities: Bertoua, Batouri and Garoua-Boulaï. Out of the three cities, Batouri and Garoua-Boulaï do not follow the same trend as the region. The level of street-network sprawl in new development in Batouri followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Garoua-Boulaï peaked in 1991-2000.
How do development practices in Est fare in comparison to others in Cameroon? Most recently in 2001-2014, street construction in Est was the 3rd-most disconnected out of the 11 regions in Cameroon. Its position in the ranks since 1975 has risen; relative to other regions in Cameroon, street construction in Est has become more disconnected. Est ranked 6th in 1975, 8th in 1976-1990, 6th in 1991-2000 and 3rd in 2001-2014.
As of 2014, the city with the most disconnected street network in Est is Bertoua with an SNDi of 3.49, which is highly disconnected. Conversely, the most connected city is Garoua-Boulaï with an SNDi of 0.92, which is relatively well-connected. See trends for these cities: Garoua-Boulaï, Bertoua
The level of street-network sprawl in the aggregate network in Est rose steadily. To get a sense of how the aggregate street network has changed in Est, we can consider three of its most populous cities: Bertoua, Batouri and Garoua-Boulaï. Disconnectivity in the most populous cities in Est follow the same region trend.
To date, Est is the 6th-most disconnected out of the 11 regions in Cameroon. Its position in the ranks since 1975 has not changed. Est ranked 6th in 1975, 7th in 1976-1990, 7th in 1991-2000 and 6th in 2001-2014.