Street-network Sprawl in Jaigaon, 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.

Jaigaon: city in West Bengal, 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 Jaigaon, India on the sprawlmap

Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Jaigaon as of 2014, the overall level of street-network sprawl is 5.82, which is highly disconnected.

Trends in street network construction: The SNDis of street construction for the respective time periods are 9.39, 6.4, 10.14 and 4.76. Disconnectivity in street construction in Jaigaon follows a zig-zag trend. In 2001-2014, street construction was most disconnected, while construction was most connected in 1991-2000.

Quantity of street network construction: The street network in Jaigaon spans a total of 49 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 4.76, 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 9.39, 7.58, 7.9 and 5.82. Disconnectivity in Jaigaon's street network follows a zig-zag trend. In 2001-2014, the city was most disconnected; while it was most connected in 1975.

Jaigaon and West Bengal do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Jaigaon followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in West Bengal rose steadily.

How do development practices in Jaigaon fare in comparison to others in West Bengal? Most recently in 2001-2014, street construction in Jaigaon was the 9th-most disconnected out of the 80 cities in West Bengal. Its position in the ranks since 1975 has fallen; relative to other cities in West Bengal, street construction in Jaigaon has become more connected. Jaigaon ranked 1st in 1975, 3rd in 1976-1990, 1st in 1991-2000 and 9th in 2001-2014.

Jaigaon and India do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Jaigaon followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in India rose steadily.

How do development practices in Jaigaon fare in comparison to others in India? Most recently in 2001-2014, street construction in Jaigaon was the 291st-most disconnected 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 Jaigaon has become more connected. Jaigaon ranked 7th in 1975, 32nd in 1976-1990, 9th in 1991-2000 and 291st in 2001-2014.

Jaigaon and West Bengal do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Jaigaon followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in West Bengal rose steadily.

To date, Jaigaon is the 4th-most disconnected out of the 80 cities in West Bengal. Its position in the ranks since 1975 has fallen; relative to other cities in West Bengal, the street network in Jaigaon has become more connected. Jaigaon ranked 1st in 1975, 1st in 1976-1990, 1st in 1991-2000 and 4th in 2001-2014.

Jaigaon and India do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Jaigaon followed a zig-zag trend with an overall decrease, while the SNDi of street constructions in India rose steadily.

To date, Jaigaon is the 58th-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 Jaigaon has become more connected. Jaigaon ranked 7th in 1975, 11th in 1976-1990, 10th in 1991-2000 and 58th in 2001-2014.

As of 2015, Jaigaon had a built-up area of 2.34 square kilometers, and a population of 120433 people.

These are some other cities with approximately the same population: