Street-network Sprawl in Al Jahra, Kuwait

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.

Al Jahra: city in Al Jahrah, Kuwait

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 Al Jahra, Kuwait on the sprawlmap

Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Al Jahra as of 2014, the overall level of street-network sprawl is 3.65, which is highly disconnected.

Trends in street network construction: The SNDis of street construction for the respective time periods are 2.75, 4.35, nan and nan. Data was not available in 1991-2000 and 2001-2014.

Quantity of street network construction: The street network in Al Jahra spans a total of 370 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 2.75, which is in the 40th to 60th percentile of disconnectedness.

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 2.75, 3.65, 3.65 and 3.65. The aggregate street network in Al Jahra increased in disconnectivity initially,but the trend has turned around after 1990.

Al Jahra and Al Jahrah 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 Al Jahrah followed a zig-zag trend with an overall decrease.

How do development practices in Al Jahra fare in comparison to others in Al Jahrah? out of the 2 cities in Al Jahrah. Its position in the ranks since 1975 has risen; relative to other cities in Al Jahrah, street construction in Al Jahra has become more disconnected. Al Jahra ranked 2nd in 1975 and 1st in 1976-1990. There was no ranking in 1991-2000 and 2001-2014 due to unavailable data.

Al Jahra and Kuwait 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 Kuwait peaked in 1976-1990.

How do development practices in Al Jahra fare in comparison to others in Kuwait? out of the 4 cities in Kuwait. Its position in the ranks since 1975 has risen; relative to other cities in Kuwait, street construction in Al Jahra has become more disconnected. Al Jahra ranked 2nd in 1975 and 1st in 1976-1990. There was no ranking in 1991-2000 and 2001-2014 due to unavailable data.

Al Jahra and Al Jahrah do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Al Jahra peaked in 1976-1990, while the SNDi of street constructions in Al Jahrah peaked in 1976-1990.

To date, Al Jahra is the 1st-most disconnected out of the 2 cities in Al Jahrah. Its position in the ranks since 1975 has risen; relative to other cities in Al Jahrah, the street network in Al Jahra has become more disconnected. Al Jahra ranked 2nd in 1975, 1st in 1976-1990, 1st in 1991-2000 and 1st in 2001-2014.

Al Jahra and Kuwait do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Al Jahra peaked in 1976-1990, while the SNDi of street constructions in Kuwait peaked in 1991-2000.

To date, Al Jahra is the 1st-most disconnected out of the 4 cities in Kuwait. Its position in the ranks since 1975 has risen; relative to other cities in Kuwait, the street network in Al Jahra has become more disconnected. Al Jahra ranked 2nd in 1975, 1st in 1976-1990, 1st in 1991-2000 and 1st in 2001-2014.

As of 2015, Al Jahra had a built-up area of 17.22 square kilometers, and a population of 82422 people.

These are some other cities with approximately the same population: