Zanzibar City: city in Zanzibar West, Tanzania
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 Zanzibar City, Tanzania on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Zanzibar City as of 2014, the overall level of street-network sprawl is 2.84, 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 2.66, 3.11, 2.46 and 2.96. Disconnectivity in street construction in Zanzibar City follows a zig-zag trend. In 1991-2000, street construction was most disconnected, while construction was most connected in 1976-1990.
Quantity of street network construction: The street network in Zanzibar City spans a total of 826 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 2.96, 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 2.66, 2.96, 2.76 and 2.84. Disconnectivity in Zanzibar City's street network follows a zig-zag trend. In 1975, the city was most disconnected; while it was most connected in 1976-1990.
Zanzibar City and Zanzibar West 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 Zanzibar City fare in comparison to others in Zanzibar West? Most recently in 2001-2014, street construction in Zanzibar City was the 1st-most disconnected out of the 1 cities in Zanzibar West. Its position in the ranks since 1975 has not changed. Zanzibar City ranked 1st in 1975, 1st in 1976-1990, 1st in 1991-2000 and 1st in 2001-2014.
Zanzibar City and Tanzania do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Zanzibar City followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Tanzania was at its lowest in 1976-1990.
How do development practices in Zanzibar City fare in comparison to others in Tanzania? Most recently in 2001-2014, street construction in Zanzibar City was the 18th-most disconnected out of the 42 cities in Tanzania. Its position in the ranks since 1975 has fallen; relative to other cities in Tanzania, street construction in Zanzibar City has become more connected. Zanzibar City ranked 7th in 1975, 6th in 1976-1990, 21st in 1991-2000 and 18th in 2001-2014.
Zanzibar City and Zanzibar West follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these followed a zig-zag trend with an overall increase.
To date, Zanzibar City is the 1st-most disconnected out of the 1 cities in Zanzibar West. Its position in the ranks since 1975 has not changed. Zanzibar City ranked 1st in 1975, 1st in 1976-1990, 1st in 1991-2000 and 1st in 2001-2014.
Zanzibar City and Tanzania do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Zanzibar City followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Tanzania rose steadily.
To date, Zanzibar City is the 13th-most disconnected out of the 42 cities in Tanzania. Its position in the ranks since 1975 has fallen; relative to other cities in Tanzania, the street network in Zanzibar City has become more connected. Zanzibar City ranked 7th in 1975, 10th in 1976-1990, 13th in 1991-2000 and 13th in 2001-2014.
As of 2015, Zanzibar City had a built-up area of 32.57 square kilometers, and a population of 698660 people.
These are some other cities with approximately the same population: