Salem: 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 Salem, India on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Salem as of 2014, the overall level of street-network sprawl is 5.04, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 3.85, 5.14, 5.88 and 5.86. Street construction in Salem increased in disconnectivity initially but has since improved. The streets constructed in 1991-2000 were the most disconnected.
Quantity of street network construction: The street network in Salem spans a total of 1514 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 5.14, 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 3.85, 4.84, 4.95 and 5.04. Overall, the SNDi of the aggregate street network has risen: the street network in Salem has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.99 points, but between 1991-2000 and 2001-2014, it rose by just 0.09.
Salem and Tamil Nadu do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Salem peaked in 1991-2000, while the SNDi of street constructions in Tamil Nadu rose steadily.
How do development practices in Salem fare in comparison to others in Tamil Nadu? Most recently in 2001-2014, street construction in Salem was the 10th-most disconnected out of the 151 cities in Tamil Nadu. Its position in the ranks since 1975 has risen; relative to other cities in Tamil Nadu, street construction in Salem has become more disconnected. Salem ranked 19th in 1975, 5th in 1976-1990, 12th in 1991-2000 and 10th in 2001-2014.
Salem and India do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Salem peaked in 1991-2000, while the SNDi of street constructions in India rose steadily.
How do development practices in Salem fare in comparison to others in India? Most recently in 2001-2014, street construction in Salem was the 126th-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 Salem has become more disconnected. Salem ranked 182nd in 1975, 86th in 1976-1990, 94th in 1991-2000 and 126th in 2001-2014.
Salem and Tamil Nadu follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these rose steadily.
To date, Salem is the 7th-most disconnected out of the 151 cities in Tamil Nadu. Its position in the ranks since 1975 has risen; relative to other cities in Tamil Nadu, the street network in Salem has become more disconnected. Salem ranked 19th in 1975, 8th in 1976-1990, 10th in 1991-2000 and 7th in 2001-2014.
Salem and India follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these rose steadily.
To date, Salem is the 117th-most disconnected out of the 1716 cities in India. Its position in the ranks since 1975 has risen; relative to other cities in India, the street network in Salem has become more disconnected. Salem ranked 182nd in 1975, 92nd in 1976-1990, 108th in 1991-2000 and 117th in 2001-2014.
As of 2015, Salem had a built-up area of 44.81 square kilometers, and a population of 1521872 people.
These are some other cities with approximately the same population: