Street-network Sprawl in Kalaghatagi, India

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.

Kalaghatagi: city in Karnataka, India

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 Kalaghatagi, India on the sprawlmap

Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Kalaghatagi as of 2014, the overall level of street-network sprawl is 2.17, which is relatively well-connected.

Trends in street network construction: The SNDis of street construction for the respective time periods are 0.15, nan, 3.63 and 4.95. Data was not available in 1976-1990.

Quantity of street network construction: The street network in Kalaghatagi spans a total of 38 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 4.95, 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 0.15, 0.15, 0.84 and 2.17. Overall, the SNDi of the aggregate street network has risen: the street network in Kalaghatagi has become more disconnected.

Kalaghatagi and Karnataka 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 Karnataka rose steadily.

How do development practices in Kalaghatagi fare in comparison to others in Karnataka? Most recently in 2001-2014, street construction in Kalaghatagi was the 17th-most disconnected out of the 147 cities in Karnataka. Its position in the ranks since 1975 has risen; relative to other cities in Karnataka, street construction in Kalaghatagi has become more disconnected. Kalaghatagi ranked 78th in 1975, 32nd in 1991-2000 and 17th in 2001-2014. There was no ranking in 1976-1990 due to unavailable data.

Kalaghatagi and India 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 India rose steadily.

How do development practices in Kalaghatagi fare in comparison to others in India? Most recently in 2001-2014, street construction in Kalaghatagi was the 244th-most disconnected out of the 1716 cities in India. Its position in the ranks since 1975 has risen; relative to other cities in India, street construction in Kalaghatagi has become more disconnected. Kalaghatagi ranked 774th in 1975, 402nd in 1991-2000 and 244th in 2001-2014. There was no ranking in 1976-1990 due to unavailable data.

Kalaghatagi and Karnataka do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Kalaghatagi rose steadily, while the SNDi of street constructions in Karnataka rose steadily.

To date, Kalaghatagi is the 74th-most disconnected out of the 147 cities in Karnataka. Its position in the ranks since 1975 has risen; relative to other cities in Karnataka, the street network in Kalaghatagi has become more disconnected. Kalaghatagi ranked 78th in 1975, 119th in 1976-1990, 112th in 1991-2000 and 74th in 2001-2014.

Kalaghatagi and India do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Kalaghatagi rose steadily, while the SNDi of street constructions in India rose steadily.

To date, Kalaghatagi is the 963rd-most disconnected out of the 1716 cities in India. Its position in the ranks since 1975 has fallen; relative to other cities in India, the street network in Kalaghatagi has become more connected. Kalaghatagi ranked 774th in 1975, 1253rd in 1976-1990, 1222nd in 1991-2000 and 963rd in 2001-2014.

As of 2015, Kalaghatagi had a built-up area of 0.8 square kilometers, and a population of 56676 people.

These are some other cities with approximately the same population: