Iringa: 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 Iringa, Tanzania on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Iringa as of 2014, the overall level of street-network sprawl is 2.79, 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 2.33, 1.1, 2.27 and 3.23. The disconnectivity of new streets constructed in Iringa fell, then rose. In 1976-1990, new street layouts were the most connected.
Quantity of street network construction: The street network in Iringa spans a total of 2666 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 3.23, 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 2.33, 2.19, 2.25 and 2.79. The SNDi of the aggregate street network in fell at first, but Iringa has worsened in disconnectivity since 1990.
The level of street-network sprawl in new development in Iringa was at its lowest in 1976-1990. To get a sense of how street development has changed in Iringa, we can consider one of its most populous cities: Ndiuka. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Ndiuka followed a zig-zag trend with an overall increase.
How do development practices in Iringa fare in comparison to others in Tanzania? Most recently in 2001-2014, street construction in Iringa was the 13th-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 Iringa has become more connected. Iringa ranked 12th in 1975, 24th in 1976-1990, 20th in 1991-2000 and 13th in 2001-2014.
As of 2014, the city with the most disconnected street network in Iringa is Ndiuka with an SNDi of 2.11, which is relatively well-connected. Conversely, the most connected city is Ndiuka with an SNDi of 2.11, which is relatively well-connected. See trends for these cities: Ndiuka, Ndiuka
The level of street-network sprawl in the aggregate network in Iringa was at its lowest in 1976-1990. To get a sense of how the aggregate street network has changed in Iringa, we can consider one of its most populous cities: Ndiuka. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Ndiuka rose steadily.
To date, Iringa is the 16th-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 Iringa has become more connected. Iringa ranked 12th in 1975, 17th in 1976-1990, 20th in 1991-2000 and 16th in 2001-2014.