Biu: city in Borno, 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 Biu, Nigeria on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Biu as of 2014, the overall level of street-network sprawl is 0.96, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.18, 0.52, 1.13 and 1.54. The disconnectivity of new streets constructed in Biu fell, then rose. In 1976-1990, new street layouts were the most connected.
Quantity of street network construction: The street network in Biu spans a total of 219 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 0.52, 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 1.18, 0.53, 0.59 and 0.96. The SNDi of the aggregate street network in fell at first, but Biu has worsened in disconnectivity since 1990.
Biu and Borno follow the same trend in the disconnectivity of their street network constructions. The SNDi for both of these was at its lowest in 1976-1990.
How do development practices in Biu fare in comparison to others in Borno? Most recently in 2001-2014, street construction in Biu was the 3rd-most disconnected out of the 17 cities in Borno. Its position in the ranks since 1975 has not changed. Biu ranked 3rd in 1975, 7th in 1976-1990, 5th in 1991-2000 and 3rd in 2001-2014.
Biu and Nigeria do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Biu was at its lowest in 1976-1990, while the SNDi of street constructions in Nigeria peaked in 1991-2000.
How do development practices in Biu fare in comparison to others in Nigeria? Most recently in 2001-2014, street construction in Biu was the 254th-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 Biu has become more connected. Biu ranked 134th in 1975, 253rd in 1976-1990, 194th in 1991-2000 and 254th in 2001-2014.
Biu and Borno follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these was at its lowest in 1976-1990.
To date, Biu is the 7th-most disconnected out of the 17 cities in Borno. Its position in the ranks since 1975 has fallen; relative to other cities in Borno, the street network in Biu has become more connected. Biu ranked 3rd in 1975, 7th in 1976-1990, 7th in 1991-2000 and 7th in 2001-2014.
Biu and Nigeria do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Biu was at its lowest in 1976-1990, while the SNDi of street constructions in Nigeria rose steadily.
To date, Biu is the 275th-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 Biu has become more connected. Biu ranked 134th in 1975, 256th in 1976-1990, 267th in 1991-2000 and 275th in 2001-2014.
As of 2015, Biu had a built-up area of 4.52 square kilometers, and a population of 201605 people.
These are some other cities with approximately the same population: