Street-network Sprawl in Gimmeizet Bilgai, 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.

Gimmeizet Bilgai: city in Ad Daqahliyah, 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 Gimmeizet Bilgai, Egypt on the sprawlmap

Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Gimmeizet Bilgai as of 2014, the overall level of street-network sprawl is 3.23, which is in the 40th to 60th percentile of disconnectedness.

Trends in street network construction: The SNDis of street construction for the respective time periods are 2.57, 4.29, nan and 3.95. Data was not available in 1991-2000.

Quantity of street network construction: The street network in Gimmeizet Bilgai spans a total of 57 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 2.57, 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 2.57, 3.09, 3.04 and 3.23. Disconnectivity in Gimmeizet Bilgai's street network follows a zig-zag trend. In 1975, the city was most disconnected; while it was most connected in 2001-2014.

Gimmeizet Bilgai and Ad Daqahliyah 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 Ad Daqahliyah rose steadily.

How do development practices in Gimmeizet Bilgai fare in comparison to others in Ad Daqahliyah? Most recently in 2001-2014, street construction in Gimmeizet Bilgai was the 13th-most disconnected out of the 18 cities in Ad Daqahliyah. Its position in the ranks since 1975 has risen; relative to other cities in Ad Daqahliyah, street construction in Gimmeizet Bilgai has become more disconnected. Gimmeizet Bilgai ranked 9th in 1975, 7th in 1976-1990 and 13th in 2001-2014. There was no ranking in 1991-2000 due to unavailable data.

Gimmeizet Bilgai 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 Gimmeizet Bilgai fare in comparison to others in Egypt? Most recently in 2001-2014, street construction in Gimmeizet Bilgai was the 50th-most disconnected out of the 170 cities in Egypt. Its position in the ranks since 1975 has risen; relative to other cities in Egypt, street construction in Gimmeizet Bilgai has become more disconnected. Gimmeizet Bilgai ranked 93rd in 1975, 50th in 1976-1990 and 50th in 2001-2014. There was no ranking in 1991-2000 due to unavailable data.

Gimmeizet Bilgai and Ad Daqahliyah do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Gimmeizet Bilgai followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Ad Daqahliyah rose steadily.

To date, Gimmeizet Bilgai is the 11th-most disconnected out of the 18 cities in Ad Daqahliyah. Its position in the ranks since 1975 has fallen; relative to other cities in Ad Daqahliyah, the street network in Gimmeizet Bilgai has become more connected. Gimmeizet Bilgai ranked 9th in 1975, 9th in 1976-1990, 10th in 1991-2000 and 11th in 2001-2014.

Gimmeizet Bilgai and Egypt do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Gimmeizet Bilgai followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Egypt was at its lowest in 1976-1990.

To date, Gimmeizet Bilgai is the 84th-most disconnected out of the 170 cities in Egypt. Its position in the ranks since 1975 has risen; relative to other cities in Egypt, the street network in Gimmeizet Bilgai has become more disconnected. Gimmeizet Bilgai ranked 93rd in 1975, 86th in 1976-1990, 89th in 1991-2000 and 84th in 2001-2014.

As of 2015, Gimmeizet Bilgai had a built-up area of 2.68 square kilometers, and a population of 52443 people.

These are some other cities with approximately the same population: