Context

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
Zarzis (most disconnected)Kairouan (most connected)

The chart above shows the evolution of street network disconnectedness of the most connected and most disconnected cities in Tunisia, for both new street additions (left) and the aggregate street network (right).

Tunisia in context: Street-network sprawl of new development

The level of street-network sprawl in new development in Tunisia peaked in 1976-1990. To get a sense of how street development has changed in Tunisia, we can consider three of its most populous regions: Tunis, Sfax and Sousse. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Tunis followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Sfax fell steadily. The level of street-network sprawl in new development in Sousse followed a zig-zag trend with an overall decrease.

How do development practices in Tunisia fare in comparison to others in the world? Most recently in 2006-2020, street construction in Tunisia was the 16th-most disconnected out of the 179 countries in the world. Its position in the ranks since 1975 has risen; relative to other countries in the world, street construction in Tunisia has become more disconnected. Tunisia ranked 70th in 1975, 36th in 1976-1990, 26th in 1991-2005 and 16th in 2006-2020.

The largest city in Tunisia is Tunis, with a population of 2347900 people. Taking into account the entire (i.e. aggregate) street network in Tunis as of 2020, the overall level of street-network sprawl is 2.65, which is relatively well-connected. The level of street-network sprawl in new development in Tunis followed a zig-zag trend with an overall increase.

Tunisia in context: Aggregate street-network sprawl

As of 2020, the city with the most disconnected street network in Tunisia is Zarzis with an SNDi of 5.16, which is very sprawly. Conversely, the most connected city is Kairouan with an SNDi of 1.33, which is very well-connected. See these two cities’ trends in the above graph, or dive deeper into each: Kairouan, Zarzis.

The level of street-network sprawl in the aggregate network in Tunisia peaked in 1976-1990. To get a sense of how the aggregate street network has changed in Tunisia, we can consider three of its most populous regions: Tunis, Sfax and Sousse. Out of the three regions, Tunis and Sfax do not follow the same trend as the country. The level of street-network sprawl in the aggregate network in Tunis rose steadily. The level of street-network sprawl in the aggregate network in Sfax fell steadily.

To date, Tunisia is the 38th-most disconnected out of the 179 countries in the world. Its position in the ranks since 1975 has risen; relative to other countries in the world, the street network in Tunisia has become more disconnected. Tunisia ranked 70th in 1975, 56th in 1976-1990, 44th in 1991-2005 and 38th in 2006-2020.

The largest city in Tunisia is Tunis, with a population of 2347900 people. Taking into account the entire (i.e. aggregate) street network in Tunis as of 2020, the overall level of street-network sprawl is 2.65, which is relatively well-connected. The level of street-network sprawl in the aggregate network in Tunis rose steadily.