Shirvan: city in North Khorasan, Iran
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 Shirvan, Iran on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Shirvan as of 2014, the overall level of street-network sprawl is 2.28, which is in the 40th to 60th percentile of disconnectedness.
Trends in street network construction: The SNDis of street construction for the respective time periods are 2.23, 1.51, 2.93 and 2.88. Disconnectivity in street construction in Shirvan 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 Shirvan spans a total of 219 kilometers. The period with the greatest volume of street construction was 1976-1990. These roads have an SNDi of 1.51, 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 2.23, 1.69, 2.05 and 2.28. The SNDi of the aggregate street network in fell at first, but Shirvan has worsened in disconnectivity since 1990.
Shirvan and North Khorasan do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Shirvan followed a zig-zag trend with an overall increase, while the SNDi of street constructions in North Khorasan was at its lowest in 1976-1990.
How do development practices in Shirvan fare in comparison to others in North Khorasan? Most recently in 2001-2014, street construction in Shirvan was the 1st-most disconnected out of the 4 cities in North Khorasan. Its position in the ranks since 1975 has risen; relative to other cities in North Khorasan, street construction in Shirvan has become more disconnected. Shirvan ranked 2nd in 1975, 2nd in 1976-1990, 1st in 1991-2000 and 1st in 2001-2014.
Shirvan and Iran do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Shirvan followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Iran was at its lowest in 1976-1990.
How do development practices in Shirvan fare in comparison to others in Iran? Most recently in 2001-2014, street construction in Shirvan was the 90th-most disconnected out of the 181 cities in Iran. Its position in the ranks since 1975 has fallen; relative to other cities in Iran, street construction in Shirvan has become more connected. Shirvan ranked 69th in 1975, 96th in 1976-1990, 59th in 1991-2000 and 90th in 2001-2014.
Shirvan and North Khorasan do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Shirvan was at its lowest in 1976-1990, while the SNDi of street constructions in North Khorasan was at its lowest in 1991-2000.
To date, Shirvan is the 1st-most disconnected out of the 4 cities in North Khorasan. Its position in the ranks since 1975 has risen; relative to other cities in North Khorasan, the street network in Shirvan has become more disconnected. Shirvan ranked 2nd in 1975, 2nd in 1976-1990, 1st in 1991-2000 and 1st in 2001-2014.
Shirvan and Iran follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these was at its lowest in 1976-1990.
To date, Shirvan is the 80th-most disconnected out of the 181 cities in Iran. Its position in the ranks since 1975 has fallen; relative to other cities in Iran, the street network in Shirvan has become more connected. Shirvan ranked 69th in 1975, 90th in 1976-1990, 75th in 1991-2000 and 80th in 2001-2014.
As of 2015, Shirvan had a built-up area of 7.16 square kilometers, and a population of 133261 people.
These are some other cities with approximately the same population: