Chennai: 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 Chennai, India on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Chennai as of 2014, the overall level of street-network sprawl is 3.94, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 4.18, 3.04, 4.55 and 5.41. The disconnectivity of new streets constructed in Chennai fell, then rose. In 1976-1990, new street layouts were the most connected.
Quantity of street network construction: The street network in Chennai spans a total of 9112 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 3.04, 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 4.18, 3.32, 3.51 and 3.94. The SNDi of the aggregate street network in fell at first, but Chennai has worsened in disconnectivity since 1990.
Chennai and Tamil Nadu do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Chennai was at its lowest in 1976-1990, while the SNDi of street constructions in Tamil Nadu rose steadily.
How do development practices in Chennai fare in comparison to others in Tamil Nadu? Most recently in 2001-2014, street construction in Chennai was the 18th-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, street construction in Chennai has become more connected. Chennai ranked 17th in 1975, 45th in 1976-1990, 30th in 1991-2000 and 18th in 2001-2014.
Chennai and India do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Chennai was at its lowest in 1976-1990, while the SNDi of street constructions in India rose steadily.
How do development practices in Chennai fare in comparison to others in India? Most recently in 2001-2014, street construction in Chennai was the 183rd-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 Chennai has become more connected. Chennai ranked 147th in 1975, 435th in 1976-1990, 248th in 1991-2000 and 183rd in 2001-2014.
Chennai and Tamil Nadu do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Chennai was at its lowest in 1976-1990, while the SNDi of street constructions in Tamil Nadu rose steadily.
To date, Chennai is the 25th-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 Chennai has become more connected. Chennai ranked 17th in 1975, 35th in 1976-1990, 37th in 1991-2000 and 25th in 2001-2014.
Chennai and India do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Chennai was at its lowest in 1976-1990, while the SNDi of street constructions in India rose steadily.
To date, Chennai is the 324th-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 Chennai has become more connected. Chennai ranked 147th in 1975, 358th in 1976-1990, 375th in 1991-2000 and 324th in 2001-2014.
As of 2015, Chennai had a built-up area of 339.61 square kilometers, and a population of 9992602 people.
These are some other cities with approximately the same population: