Njombe: 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 Njombe, Tanzania on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Njombe as of 2014, the overall level of street-network sprawl is 2.69, 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 2.72, 2.31, 2.77 and 2.75. Disconnectivity in street construction in Njombe 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 Njombe spans a total of 2609 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 2.75, 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 2.72, 2.41, 2.49 and 2.69. The SNDi of the aggregate street network in fell at first, but Njombe has worsened in disconnectivity since 1990.
The level of street-network sprawl in new development in Njombe followed a zig-zag trend with an overall increase. To get a sense of how street development has changed in Njombe, we can consider one of its most populous cities: Makambako. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Makambako rose steadily.
How do development practices in Njombe fare in comparison to others in Tanzania? Most recently in 2001-2014, street construction in Njombe was the 22nd-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 Njombe has become more connected. Njombe ranked 7th in 1975, 17th in 1976-1990, 16th in 1991-2000 and 22nd in 2001-2014.
As of 2014, the city with the most disconnected street network in Njombe is Makambako with an SNDi of 2.12, which is relatively well-connected. Conversely, the most connected city is Makambako with an SNDi of 2.12, which is relatively well-connected. See trends for these cities: Makambako, Makambako
The level of street-network sprawl in the aggregate network in Njombe was at its lowest in 1976-1990. To get a sense of how the aggregate street network has changed in Njombe, we can consider one of its most populous cities: Makambako. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Makambako rose steadily.
To date, Njombe is the 17th-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 Njombe has become more connected. Njombe ranked 7th in 1975, 15th in 1976-1990, 16th in 1991-2000 and 17th in 2001-2014.