Kigoma: region in 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 Kigoma, Tanzania on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Kigoma as of 2014, the overall level of street-network sprawl is 2.2, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 2.63, 1.15, 1.44 and 2.11. The disconnectivity of new streets constructed in Kigoma fell, then rose. In 1976-1990, new street layouts were the most connected.
Quantity of street network construction: The street network in Kigoma spans a total of 7656 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 2.11, 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 2.63, 2.17, 1.91 and 2.2. The SNDi of the aggregate street network in fell at first, but Kigoma has worsened in disconnectivity since 2000.
The level of street-network sprawl in new development in Kigoma was at its lowest in 1976-1990. To get a sense of how street development has changed in Kigoma, we can consider three of its most populous cities: Kilima Hewa, Murubona and Nguruka. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Kilima Hewa rose steadily. The level of street-network sprawl in new development in Murubona rose steadily. The level of street-network sprawl in new development in Nguruka followed a zig-zag trend.
How do development practices in Kigoma fare in comparison to others in Tanzania? Most recently in 2001-2014, street construction in Kigoma was the 23rd-most disconnected out of the 24 regions in Tanzania. Its position in the ranks since 1975 has fallen; relative to other regions in Tanzania, street construction in Kigoma has become more connected. Kigoma ranked 10th in 1975, 23rd in 1976-1990, 24th in 1991-2000 and 23rd in 2001-2014.
As of 2014, the city with the most disconnected street network in Kigoma is Nguruka with an SNDi of 4.79, which is highly disconnected. Conversely, the most connected city is Murubona with an SNDi of 1.06, which is relatively well-connected. See trends for these cities: Murubona, Nguruka
The level of street-network sprawl in the aggregate network in Kigoma was at its lowest in 1991-2000. To get a sense of how the aggregate street network has changed in Kigoma, we can consider three of its most populous cities: Kilima Hewa, Murubona and Nguruka. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Kilima Hewa rose steadily. The level of street-network sprawl in the aggregate network in Murubona rose steadily. The level of street-network sprawl in the aggregate network in Nguruka fell steadily.
To date, Kigoma is the 23rd-most disconnected out of the 24 regions in Tanzania. Its position in the ranks since 1975 has fallen; relative to other regions in Tanzania, the street network in Kigoma has become more connected. Kigoma ranked 10th in 1975, 19th in 1976-1990, 21st in 1991-2000 and 23rd in 2001-2014.