Street-network Sprawl in Busesa, Uganda

What is Street-network sprawl?

Street-network Sprawl is a way to measure urban sprawl, worldwide, through the connectedness of the streets. Less sprawl means more connected, more walkable streets. Well-connected streets – like New York City’s grid – are more walkable and can be served by public transit.

The street network is permanent, and its connectivity affects the livability and environmental footprint of cities for decades and centuries to come. In places with more connected streets, residents drive less and walk more. A well-connected street network is associated with better outcomes for health, the environment, sustainable consumption, social integration, and equity.

We can quantify how connected street networks are with the Street Network Disconnectedness Index (SNDi).

SNDi -- our measure of street-network sprawl (disconnectedness)

The SNDi is a comprehensive measurement of “sprawl”. It captures:

A higher SNDi means less-connected streets – i.e., more sprawl. For the 10137 cities in our dataset, the average SNDi is 2.25, with half of the cities' SNDis falling between 1.08 and 3.25.

More information on the sprawl index can be found in these research papers:

To see the state of street-network sprawl across the globe, visit the sprawlmap.

Busesa: city in Iganga, Uganda

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 Busesa, Uganda on the sprawlmap

Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Busesa as of 2014, the overall level of street-network sprawl is -0.76, which is very well-connected.

Trends in street network construction: The SNDis of street construction for the respective time periods are nan, nan, -0.57 and nan. Data was not available in 1975, 1976-1990 and 2001-2014.

Quantity of street network construction: The street network in Busesa spans a total of 30 kilometers. It is dominated by roads constructed in 1991-2000. These roads have an SNDi of -0.57, which is very 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 nan, -1.82, -0.76 and -0.76. Data was not available in 1975.

Busesa and Iganga do not follow the same trend in the disconnectivity of their street network constructions. There was not enough data from the city, while the SNDi of street constructions in Iganga rose steadily.

How do development practices in Busesa fare in comparison to others in Iganga? out of the 2 cities in Iganga. Busesa ranked 2nd in 1991-2000. There was no ranking in 1975, 1976-1990, and 2001-2014 due to unavailable data.

Busesa and Uganda do not follow the same trend in the disconnectivity of their street network constructions. There was not enough data from the city, while the SNDi of street constructions in Uganda was at its lowest in 1976-1990.

How do development practices in Busesa fare in comparison to others in Uganda? out of the 26 cities in Uganda. Busesa ranked 23rd in 1991-2000. There was no ranking in 1975, 1976-1990, and 2001-2014 due to unavailable data.

Busesa and Iganga do not follow the same trend in the disconnectivity of their aggregate street networks. There was not enough data from the city, while the SNDi of street constructions in Iganga rose steadily.

To date, Busesa is the 2nd-most disconnected out of the 2 cities in Iganga. Its position in the ranks since 1975 has not changed. Busesa ranked 2nd in 1976-1990, 2nd in 1991-2000 and 2nd in 2001-2014. There was no ranking in 1975 due to unavailable data.

Busesa and Uganda do not follow the same trend in the disconnectivity of their aggregate street networks. There was not enough data from the city, while the SNDi of street constructions in Uganda was at its lowest in 1991-2000.

To date, Busesa is the 26th-most disconnected out of the 26 cities in Uganda. Its position in the ranks since 1975 has fallen; relative to other cities in Uganda, the street network in Busesa has become more connected. Busesa ranked 20th in 1976-1990, 24th in 1991-2000 and 26th in 2001-2014. There was no ranking in 1975 due to unavailable data.

As of 2015, Busesa had a built-up area of 0.68 square kilometers, and a population of 64362 people.

These are some other cities with approximately the same population: