Patna: city in Bihar, 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 Patna, India on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Patna as of 2014, the overall level of street-network sprawl is 3.88, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 3.65, 3.54, 4.59 and 4.07. Disconnectivity in street construction in Patna follows a zig-zag trend. In 1976-1990, street construction was most disconnected, while construction was most connected in 1991-2000.
Quantity of street network construction: The street network in Patna spans a total of 849 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 3.54, 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 3.65, 3.55, 3.85 and 3.88. The SNDi of the aggregate street network in fell at first, but Patna has worsened in disconnectivity since 1990.
Patna and Bihar follow the same trend in the disconnectivity of their street network constructions. The SNDi for both of these followed a zig-zag trend with an overall increase.
How do development practices in Patna fare in comparison to others in Bihar? Most recently in 2001-2014, street construction in Patna was the 18th-most disconnected out of the 120 cities in Bihar. Its position in the ranks since 1975 has fallen; relative to other cities in Bihar, street construction in Patna has become more connected. Patna ranked 11th in 1975, 29th in 1976-1990, 10th in 1991-2000 and 18th in 2001-2014.
Patna and India do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Patna followed a zig-zag trend with an overall increase, while the SNDi of street constructions in India rose steadily.
How do development practices in Patna fare in comparison to others in India? Most recently in 2001-2014, street construction in Patna was the 432nd-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 Patna has become more connected. Patna ranked 202nd in 1975, 308th in 1976-1990, 241st in 1991-2000 and 432nd in 2001-2014.
Patna and Bihar do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Patna was at its lowest in 1976-1990, while the SNDi of street constructions in Bihar rose steadily.
To date, Patna is the 27th-most disconnected out of the 120 cities in Bihar. Its position in the ranks since 1975 has fallen; relative to other cities in Bihar, the street network in Patna has become more connected. Patna ranked 11th in 1975, 32nd in 1976-1990, 25th in 1991-2000 and 27th in 2001-2014.
Patna and India do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Patna was at its lowest in 1976-1990, while the SNDi of street constructions in India rose steadily.
To date, Patna is the 338th-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 Patna has become more connected. Patna ranked 202nd in 1975, 306th in 1976-1990, 287th in 1991-2000 and 338th in 2001-2014.
As of 2015, Patna had a built-up area of 45.4 square kilometers, and a population of 2771973 people.
These are some other cities with approximately the same population: