Lankaran: region in Azerbaijan
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 Lankaran, Azerbaijan on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Lankaran as of 2014, the overall level of street-network sprawl is 6.2, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 6.49, 5.98, 5.47 and 6.17. The disconnectivity of new streets constructed in Lankaran fell, then rose. In 1991-2000, new street layouts were the most connected.
Quantity of street network construction: The street network in Lankaran spans a total of 5020 kilometers. The period with the greatest volume of street construction was 1976-1990. These roads have an SNDi of 5.98, 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 6.49, 6.23, 6.2 and 6.2. Overall, the SNDi of the aggregate street network has fallen: the street network in Lankaran has become more connected.
The level of street-network sprawl in new development in Lankaran was at its lowest in 1991-2000. To get a sense of how street development has changed in Lankaran, we can consider three of its most populous cities: Lankaran, Cəlilabad and Masallı. Out of the three cities, Lankaran and Cəlilabad do not follow the same trend as the region. The level of street-network sprawl in new development in Lankaran followed a zig-zag trend. The level of street-network sprawl in new development in Cəlilabad followed a zig-zag trend with an overall increase.
How do development practices in Lankaran fare in comparison to others in Azerbaijan? Most recently in 2001-2014, street construction in Lankaran was the 1st-most disconnected out of the 8 regions in Azerbaijan. Its position in the ranks since 1975 has not changed. Lankaran ranked 1st in 1975, 1st in 1976-1990, 1st in 1991-2000 and 1st in 2001-2014.
As of 2014, the city with the most disconnected street network in Lankaran is Masallı with an SNDi of 5.07, which is highly disconnected. Conversely, the most connected city is Cəlilabad with an SNDi of 2.53, which is in the 40th to 60th percentile of disconnectedness. See trends for these cities: Cəlilabad, Masallı
The level of street-network sprawl in the aggregate network in Lankaran fell steadily. To get a sense of how the aggregate street network has changed in Lankaran, we can consider three of its most populous cities: Lankaran, Cəlilabad and Masallı. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Lankaran fell steadily. The level of street-network sprawl in the aggregate network in Cəlilabad followed a zig-zag trend with an overall increase. The level of street-network sprawl in the aggregate network in Masallı was at its lowest in 1991-2000.
To date, Lankaran is the 1st-most disconnected out of the 8 regions in Azerbaijan. Its position in the ranks since 1975 has not changed. Lankaran ranked 1st in 1975, 1st in 1976-1990, 1st in 1991-2000 and 1st in 2001-2014.