Béchar: region in Algeria
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 Béchar, Algeria on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Béchar as of 2014, the overall level of street-network sprawl is 0.94, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.52, 0.69, 0.91 and 1.43. The disconnectivity of new streets constructed in Béchar fell, then rose. In 1976-1990, new street layouts were the most connected.
Quantity of street network construction: The street network in Béchar spans a total of 1205 kilometers. The period with the greatest volume of street construction was 1976-1990. These roads have an SNDi of 0.69, which is relatively well-connected.
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 1.52, 0.87, 0.88 and 0.94. The SNDi of the aggregate street network in fell at first, but Béchar has worsened in disconnectivity since 1990.
The level of street-network sprawl in new development in Béchar was at its lowest in 1976-1990. To get a sense of how street development has changed in Béchar, we can consider one of its most populous cities: Bashar. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Bashar rose steadily.
How do development practices in Béchar fare in comparison to others in Algeria? Most recently in 2001-2014, street construction in Béchar was the 38th-most disconnected out of the 46 regions in Algeria. Its position in the ranks since 1975 has fallen; relative to other regions in Algeria, street construction in Béchar has become more connected. Béchar ranked 32nd in 1975, 41st in 1976-1990, 43rd in 1991-2000 and 38th in 2001-2014.
As of 2014, the city with the most disconnected street network in Béchar is Bashar with an SNDi of 0.71, which is relatively well-connected. Conversely, the most connected city is Bashar with an SNDi of 0.71, which is relatively well-connected. See trends for these cities: Bashar, Bashar
The level of street-network sprawl in the aggregate network in Béchar was at its lowest in 1976-1990. To get a sense of how the aggregate street network has changed in Béchar, we can consider one of its most populous cities: Bashar. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Bashar rose steadily.
To date, Béchar is the 43rd-most disconnected out of the 46 regions in Algeria. Its position in the ranks since 1975 has fallen; relative to other regions in Algeria, the street network in Béchar has become more connected. Béchar ranked 32nd in 1975, 41st in 1976-1990, 42nd in 1991-2000 and 43rd in 2001-2014.