Context
The chart above shows the evolution of street network disconnectedness of the most connected and most disconnected cities in Chad, for both new street additions (left) and the aggregate street network (right).
Chad in context: Street-network sprawl of new development
The level of street-network sprawl in new development in Chad rose steadily. To get a sense of how street development has changed in Chad, we can consider three of its most populous regions: Ville de N'Djamena, Ouaddaï and Moyen-Chari. Out of the three regions, Ville de N'Djamena does not follow the same trend as the country. The level of street-network sprawl in new development in Ville de N'Djamena followed a zig-zag trend with an overall increase.
How do development practices in Chad fare in comparison to others in the world? Most recently in 2006-2020, street construction in Chad was the 39th-most disconnected out of the 179 countries in the world. Its position in the ranks since 1975 has fallen; relative to other countries in the world, street construction in Chad has become more connected. Chad ranked 11th in 1975, 16th in 1976-1990, 27th in 1991-2005 and 39th in 2006-2020.
The largest city in Chad is N'Djamena, with a population of 1348300 people. Taking into account the entire (i.e. aggregate) street network in N'Djamena as of 2020, the overall level of street-network sprawl is 1.63, which is very well-connected. The level of street-network sprawl in new development in N'Djamena followed a zig-zag trend with an overall increase.
Chad in context: Aggregate street-network sprawl
As of 2020, the city with the most disconnected street network in Chad is Karyari with an SNDi of 10.97, which is very sprawly. Conversely, the most connected city is Fianga with an SNDi of 0.64, which is very well-connected. See these two cities’ trends in the above graph, or dive deeper into each: Fianga, Karyari.
The level of street-network sprawl in the aggregate network in Chad rose steadily. To get a sense of how the aggregate street network has changed in Chad, we can consider three of its most populous regions: Ville de N'Djamena, Ouaddaï and Moyen-Chari. Disconnectivity in the most populous cities in Chad follow the same country trend.
To date, Chad is the 36th-most disconnected out of the 179 countries in the world. Its position in the ranks since 1975 has fallen; relative to other countries in the world, the street network in Chad has become more connected. Chad ranked 11th in 1975, 16th in 1976-1990, 17th in 1991-2005 and 36th in 2006-2020.
The largest city in Chad is N'Djamena, with a population of 1348300 people. Taking into account the entire (i.e. aggregate) street network in N'Djamena as of 2020, the overall level of street-network sprawl is 1.63, which is very well-connected. The level of street-network sprawl in the aggregate network in N'Djamena rose steadily.