Street-network Sprawl in Jakkampatty, 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.

Jakkampatty: city in Tamil Nadu, 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 Jakkampatty, India on the sprawlmap

Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Jakkampatty as of 2014, the overall level of street-network sprawl is 2.43, 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 3.08, 2.57, 1.57 and nan. Data was not available in 2001-2014.

Quantity of street network construction: The street network in Jakkampatty spans a total of 50 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of nan, 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 3.08, 2.61, 2.25 and 2.43. The SNDi of the aggregate street network in fell at first, but Jakkampatty has worsened in disconnectivity since 2000.

Jakkampatty and Tamil Nadu 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 Tamil Nadu rose steadily.

How do development practices in Jakkampatty fare in comparison to others in Tamil Nadu? out of the 151 cities in Tamil Nadu. Its position in the ranks since 1975 has fallen; relative to other cities in Tamil Nadu, street construction in Jakkampatty has become more connected. Jakkampatty ranked 31st in 1975, 58th in 1976-1990 and 93rd in 1991-2000. There was no ranking in 2001-2014 due to unavailable data.

Jakkampatty 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 Jakkampatty fare in comparison to others in India? out of the 1716 cities in India. Its position in the ranks since 1975 has fallen; relative to other cities in India, street construction in Jakkampatty has become more connected. Jakkampatty ranked 288th in 1975, 571st in 1976-1990 and 786th in 1991-2000. There was no ranking in 2001-2014 due to unavailable data.

Jakkampatty and Tamil Nadu do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Jakkampatty was at its lowest in 1991-2000, while the SNDi of street constructions in Tamil Nadu rose steadily.

To date, Jakkampatty is the 89th-most disconnected out of the 151 cities in Tamil Nadu. Its position in the ranks since 1975 has fallen; relative to other cities in Tamil Nadu, the street network in Jakkampatty has become more connected. Jakkampatty ranked 31st in 1975, 63rd in 1976-1990, 84th in 1991-2000 and 89th in 2001-2014.

Jakkampatty and India do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Jakkampatty was at its lowest in 1991-2000, while the SNDi of street constructions in India rose steadily.

To date, Jakkampatty is the 860th-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 Jakkampatty has become more connected. Jakkampatty ranked 288th in 1975, 568th in 1976-1990, 808th in 1991-2000 and 860th in 2001-2014.

As of 2015, Jakkampatty had a built-up area of 0.25 square kilometers, and a population of 82060 people.

These are some other cities with approximately the same population: