Umu Lawlaw: city in Imo, Nigeria
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 Umu Lawlaw, Nigeria on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Umu Lawlaw as of 2014, the overall level of street-network sprawl is 2.52, 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 5.12, 2.22, 2.09 and 3.43. The disconnectivity of new streets constructed in Umu Lawlaw fell, then rose. In 1991-2000, new street layouts were the most connected.
Quantity of street network construction: The street network in Umu Lawlaw spans a total of 100 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 2.22, 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 5.12, 2.39, 2.36 and 2.52. The SNDi of the aggregate street network in fell at first, but Umu Lawlaw has worsened in disconnectivity since 2000.
Umu Lawlaw and Imo do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Umu Lawlaw was at its lowest in 1991-2000, while the SNDi of street constructions in Imo followed a zig-zag trend with an overall increase.
How do development practices in Umu Lawlaw fare in comparison to others in Imo? Most recently in 2001-2014, street construction in Umu Lawlaw was the 4th-most disconnected out of the 10 cities in Imo. Its position in the ranks since 1975 has fallen; relative to other cities in Imo, street construction in Umu Lawlaw has become more connected. Umu Lawlaw ranked 1st in 1975, 6th in 1976-1990, 4th in 1991-2000 and 4th in 2001-2014.
Umu Lawlaw and Nigeria do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Umu Lawlaw was at its lowest in 1991-2000, while the SNDi of street constructions in Nigeria peaked in 1991-2000.
How do development practices in Umu Lawlaw fare in comparison to others in Nigeria? Most recently in 2001-2014, street construction in Umu Lawlaw was the 154th-most disconnected out of the 411 cities in Nigeria. Its position in the ranks since 1975 has fallen; relative to other cities in Nigeria, street construction in Umu Lawlaw has become more connected. Umu Lawlaw ranked 4th in 1975, 154th in 1976-1990, 154th in 1991-2000 and 154th in 2001-2014.
Umu Lawlaw and Imo do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Umu Lawlaw was at its lowest in 1991-2000, while the SNDi of street constructions in Imo rose steadily.
To date, Umu Lawlaw is the 5th-most disconnected out of the 10 cities in Imo. Its position in the ranks since 1975 has fallen; relative to other cities in Imo, the street network in Umu Lawlaw has become more connected. Umu Lawlaw ranked 1st in 1975, 5th in 1976-1990, 5th in 1991-2000 and 5th in 2001-2014.
Umu Lawlaw and Nigeria do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Umu Lawlaw was at its lowest in 1991-2000, while the SNDi of street constructions in Nigeria rose steadily.
To date, Umu Lawlaw is the 157th-most disconnected out of the 411 cities in Nigeria. Its position in the ranks since 1975 has fallen; relative to other cities in Nigeria, the street network in Umu Lawlaw has become more connected. Umu Lawlaw ranked 4th in 1975, 122nd in 1976-1990, 138th in 1991-2000 and 157th in 2001-2014.
As of 2015, Umu Lawlaw had a built-up area of 1.61 square kilometers, and a population of 121929 people.
These are some other cities with approximately the same population: