Street-network Sprawl in Mopeia, Mozambique

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.

Mopeia: city in Zambezia, Mozambique

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 Mopeia, Mozambique on the sprawlmap

Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Mopeia as of 2014, the overall level of street-network sprawl is 0.19, which is very well-connected.

Trends in street network construction: The SNDis of street construction for the respective time periods are -0.55, 0.64, nan and 0.02. Data was not available in 1991-2000.

Quantity of street network construction: The street network in Mopeia spans a total of 38 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 0.64, 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 -0.55, 0.16, 0.21 and 0.19. The aggregate street network in Mopeia increased in disconnectivity initially,but the trend has turned around after 2000.

Mopeia and Zambezia 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 Zambezia rose steadily.

How do development practices in Mopeia fare in comparison to others in Zambezia? Most recently in 2001-2014, street construction in Mopeia was the 11th-most disconnected out of the 12 cities in Zambezia. Its position in the ranks since 1975 has fallen; relative to other cities in Zambezia, street construction in Mopeia has become more connected. Mopeia ranked 6th in 1975, 8th in 1976-1990 and 11th in 2001-2014. There was no ranking in 1991-2000 due to unavailable data.

Mopeia and Mozambique 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 Mozambique was at its lowest in 1976-1990.

How do development practices in Mopeia fare in comparison to others in Mozambique? Most recently in 2001-2014, street construction in Mopeia was the 46th-most disconnected out of the 57 cities in Mozambique. Its position in the ranks since 1975 has not changed. Mopeia ranked 34th in 1975, 34th in 1976-1990 and 46th in 2001-2014. There was no ranking in 1991-2000 due to unavailable data.

Mopeia and Zambezia do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Mopeia peaked in 1991-2000, while the SNDi of street constructions in Zambezia rose steadily.

To date, Mopeia is the 11th-most disconnected out of the 12 cities in Zambezia. Its position in the ranks since 1975 has fallen; relative to other cities in Zambezia, the street network in Mopeia has become more connected. Mopeia ranked 6th in 1975, 8th in 1976-1990, 9th in 1991-2000 and 11th in 2001-2014.

Mopeia and Mozambique do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Mopeia peaked in 1991-2000, while the SNDi of street constructions in Mozambique was at its lowest in 1976-1990.

To date, Mopeia is the 48th-most disconnected out of the 57 cities in Mozambique. Its position in the ranks since 1975 has fallen; relative to other cities in Mozambique, the street network in Mopeia has become more connected. Mopeia ranked 34th in 1975, 40th in 1976-1990, 42nd in 1991-2000 and 48th in 2001-2014.

As of 2015, Mopeia had a built-up area of 0.2 square kilometers, and a population of 111481 people.

These are some other cities with approximately the same population: