Street-network Sprawl in Kafr al Dayr, Egypt

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.

Kafr al Dayr: city in Al Qalyubiyah, Egypt

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 Kafr al Dayr, Egypt on the sprawlmap

Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Kafr al Dayr as of 2014, the overall level of street-network sprawl is 3.66, which is highly disconnected.

Trends in street network construction: The SNDis of street construction for the respective time periods are 3.89, 3.42, nan and nan. Data was not available in 1991-2000 and 2001-2014.

Quantity of street network construction: The street network in Kafr al Dayr spans a total of 73 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 3.89, 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 3.89, 3.64, 3.64 and 3.66. The SNDi of the aggregate street network in fell at first, but Kafr al Dayr has worsened in disconnectivity since 1990.

Kafr al Dayr and Al Qalyubiyah 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 Qalyubiyah followed a zig-zag trend with an overall decrease.

How do development practices in Kafr al Dayr fare in comparison to others in Al Qalyubiyah? out of the 5 cities in Al Qalyubiyah. Its position in the ranks since 1975 has fallen; relative to other cities in Al Qalyubiyah, street construction in Kafr al Dayr has become more connected. Kafr al Dayr ranked 4th in 1975 and 5th in 1976-1990. There was no ranking in 1991-2000 and 2001-2014 due to unavailable data.

Kafr al Dayr and Egypt 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 Egypt followed a zig-zag trend with an overall increase.

How do development practices in Kafr al Dayr fare in comparison to others in Egypt? out of the 170 cities in Egypt. Its position in the ranks since 1975 has fallen; relative to other cities in Egypt, street construction in Kafr al Dayr has become more connected. Kafr al Dayr ranked 62nd in 1975 and 69th in 1976-1990. There was no ranking in 1991-2000 and 2001-2014 due to unavailable data.

Kafr al Dayr and Al Qalyubiyah do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Kafr al Dayr was at its lowest in 1976-1990, while the SNDi of street constructions in Al Qalyubiyah peaked in 1976-1990.

To date, Kafr al Dayr is the 5th-most disconnected out of the 5 cities in Al Qalyubiyah. Its position in the ranks since 1975 has fallen; relative to other cities in Al Qalyubiyah, the street network in Kafr al Dayr has become more connected. Kafr al Dayr ranked 4th in 1975, 5th in 1976-1990, 5th in 1991-2000 and 5th in 2001-2014.

Kafr al Dayr and Egypt do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Kafr al Dayr was at its lowest in 1976-1990, while the SNDi of street constructions in Egypt was at its lowest in 1976-1990.

To date, Kafr al Dayr is the 73rd-most disconnected out of the 170 cities in Egypt. Its position in the ranks since 1975 has fallen; relative to other cities in Egypt, the street network in Kafr al Dayr has become more connected. Kafr al Dayr ranked 62nd in 1975, 71st in 1976-1990, 70th in 1991-2000 and 73rd in 2001-2014.

As of 2015, Kafr al Dayr had a built-up area of 2.52 square kilometers, and a population of 80697 people.

These are some other cities with approximately the same population: