İzmit: city in Kocaeli, Turkey
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 İzmit, Turkey on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in İzmit as of 2014, the overall level of street-network sprawl is 1.65, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.48, 1.46, 2.36 and 3.44. The disconnectivity of new streets constructed in İzmit fell, then rose. In 1976-1990, new street layouts were the most connected.
Quantity of street network construction: The street network in İzmit spans a total of 1897 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 1.48, which is relatively well-connected.
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 1.48, 1.47, 1.57 and 1.65. The SNDi of the aggregate street network in fell at first, but İzmit has worsened in disconnectivity since 1990.
İzmit and Kocaeli do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in İzmit was at its lowest in 1976-1990, while the SNDi of street constructions in Kocaeli rose steadily.
How do development practices in İzmit fare in comparison to others in Kocaeli? Most recently in 2001-2014, street construction in İzmit was the 2nd-most disconnected out of the 3 cities in Kocaeli. Its position in the ranks since 1975 has not changed. İzmit ranked 2nd in 1975, 2nd in 1976-1990, 3rd in 1991-2000 and 2nd in 2001-2014.
İzmit and Turkey do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in İzmit was at its lowest in 1976-1990, while the SNDi of street constructions in Turkey rose steadily.
How do development practices in İzmit fare in comparison to others in Turkey? Most recently in 2001-2014, street construction in İzmit was the 22nd-most disconnected out of the 134 cities in Turkey. Its position in the ranks since 1975 has risen; relative to other cities in Turkey, street construction in İzmit has become more disconnected. İzmit ranked 40th in 1975, 43rd in 1976-1990, 37th in 1991-2000 and 22nd in 2001-2014.
İzmit and Kocaeli do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in İzmit was at its lowest in 1976-1990, while the SNDi of street constructions in Kocaeli rose steadily.
To date, İzmit is the 2nd-most disconnected out of the 3 cities in Kocaeli. Its position in the ranks since 1975 has not changed. İzmit ranked 2nd in 1975, 2nd in 1976-1990, 2nd in 1991-2000 and 2nd in 2001-2014.
İzmit and Turkey do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in İzmit was at its lowest in 1976-1990, while the SNDi of street constructions in Turkey rose steadily.
To date, İzmit is the 34th-most disconnected out of the 134 cities in Turkey. Its position in the ranks since 1975 has risen; relative to other cities in Turkey, the street network in İzmit has become more disconnected. İzmit ranked 40th in 1975, 39th in 1976-1990, 36th in 1991-2000 and 34th in 2001-2014.
As of 2015, İzmit had a built-up area of 63.6 square kilometers, and a population of 605162 people.
These are some other cities with approximately the same population: