Kayanza: region in Burundi
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 Kayanza, Burundi on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Kayanza as of 2014, the overall level of street-network sprawl is 4.04, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.76, 3.1, 5.19 and 3.92. Street construction in Kayanza increased in disconnectivity initially but has since improved. The streets constructed in 1991-2000 were the most disconnected.
Quantity of street network construction: The street network in Kayanza spans a total of 2547 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 3.92, which is highly disconnected.
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 1.76, 3.08, 4.25 and 4.04. The aggregate street network in Kayanza increased in disconnectivity initially,but the trend has turned around after 2000.
The level of street-network sprawl in new development in Kayanza peaked in 1991-2000. To get a sense of how street development has changed in Kayanza, we can consider two of its most populous cities: Kayanza and Ntabandwa. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Kayanza followed a zig-zag trend. The level of street-network sprawl in new development in Ntabandwa followed a zig-zag trend.
How do development practices in Kayanza fare in comparison to others in Burundi? Most recently in 2001-2014, street construction in Kayanza was the 6th-most disconnected out of the 16 regions in Burundi. Its position in the ranks since 1975 has risen; relative to other regions in Burundi, street construction in Kayanza has become more disconnected. Kayanza ranked 8th in 1975, 7th in 1976-1990, 2nd in 1991-2000 and 6th in 2001-2014.
As of 2014, the city with the most disconnected street network in Kayanza is Kayanza with an SNDi of 4.1, which is highly disconnected. Conversely, the most connected city is Ntabandwa with an SNDi of 3.18, which is in the 40th to 60th percentile of disconnectedness. See trends for these cities: Ntabandwa, Kayanza
The level of street-network sprawl in the aggregate network in Kayanza peaked in 1991-2000. To get a sense of how the aggregate street network has changed in Kayanza, we can consider two of its most populous cities: Kayanza and Ntabandwa. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Kayanza followed a zig-zag trend. The level of street-network sprawl in the aggregate network in Ntabandwa followed a zig-zag trend.
To date, Kayanza is the 4th-most disconnected out of the 16 regions in Burundi. Its position in the ranks since 1975 has risen; relative to other regions in Burundi, the street network in Kayanza has become more disconnected. Kayanza ranked 8th in 1975, 7th in 1976-1990, 2nd in 1991-2000 and 4th in 2001-2014.