Street-network Sprawl in Gohatsion, Ethiopia

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.

Gohatsion: city in Oromia, Ethiopia

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 Gohatsion, Ethiopia on the sprawlmap

Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Gohatsion as of 2014, the overall level of street-network sprawl is 2.07, which is relatively well-connected.

Trends in street network construction: The SNDis of street construction for the respective time periods are nan, 2.96, -0.5 and 2.3. Data was not available in 1975.

Quantity of street network construction: The street network in Gohatsion spans a total of 20 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of nan, 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 nan, 2.96, 0.79 and 2.07. Data was not available in 1975.

Gohatsion and Oromia 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 Oromia was at its lowest in 1976-1990.

How do development practices in Gohatsion fare in comparison to others in Oromia? Most recently in 2001-2014, street construction in Gohatsion was the 24th-most disconnected out of the 106 cities in Oromia. Its position in the ranks since 1975 has fallen; relative to other cities in Oromia, street construction in Gohatsion has become more connected. Gohatsion ranked 4th in 1976-1990, 45th in 1991-2000 and 24th in 2001-2014. There was no ranking in 1975 due to unavailable data.

Gohatsion and Ethiopia 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 Ethiopia followed a zig-zag trend with an overall increase.

How do development practices in Gohatsion fare in comparison to others in Ethiopia? Most recently in 2001-2014, street construction in Gohatsion was the 62nd-most disconnected out of the 252 cities in Ethiopia. Its position in the ranks since 1975 has fallen; relative to other cities in Ethiopia, street construction in Gohatsion has become more connected. Gohatsion ranked 7th in 1976-1990, 116th in 1991-2000 and 62nd in 2001-2014. There was no ranking in 1975 due to unavailable data.

Gohatsion and Oromia 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 Oromia was at its lowest in 1976-1990.

To date, Gohatsion is the 29th-most disconnected out of the 106 cities in Oromia. Its position in the ranks since 1975 has fallen; relative to other cities in Oromia, the street network in Gohatsion has become more connected. Gohatsion ranked 4th in 1976-1990, 26th in 1991-2000 and 29th in 2001-2014. There was no ranking in 1975 due to unavailable data.

Gohatsion and Ethiopia 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 Ethiopia followed a zig-zag trend with an overall increase.

To date, Gohatsion is the 77th-most disconnected out of the 252 cities in Ethiopia. Its position in the ranks since 1975 has fallen; relative to other cities in Ethiopia, the street network in Gohatsion has become more connected. Gohatsion ranked 7th in 1976-1990, 70th in 1991-2000 and 77th in 2001-2014. There was no ranking in 1975 due to unavailable data.

As of 2015, Gohatsion had a built-up area of 0.09 square kilometers, and a population of 90464 people.

These are some other cities with approximately the same population: