The improvement of transport infrastructure in Tunisia faces both economic and territorial challenges, as many inland regions struggle with accessibility issues that hinder their connection to the country's main economic areas. Recently, the Islamic Development Bank (IDB) has approved a significant funding boost of 335.49 million euros (around 376 million USD) for the development of the highway network. This funding is aimed at strengthening key transport routes identified in Tunisia's national strategy for infrastructure development. The two main projects are intended to improve connectivity between the capital, Tunis, and regions in the northwest and central parts of the country, enhancing mobility for people and promoting economic integration in these areas. The first project involves the construction of the Kef - Tunis axis. Technical and feasibility studies for this infrastructure were completed in the first half of 2026. This highway is designed to strengthen the link between Tunis and the governorates of the northwest, especially Kef and Jendouba, by improving their connection with the capital and the main economic centers of the country. The second project is the A2 Tunis - Jelma highway, which is already under construction. This 186 km route aims to connect Tunis to Jelma in the governorate of Sidi Bouzid, passing through the governorates of Ben Arous, Zaghouan, and Kairouan. The project is divided into eight sections, with a significant portion of the route planned in the Kairouan region. These new infrastructures are expected to reduce travel times and facilitate exchanges between production areas and the main markets in Tunisia. They also aim to improve access to essential services and enhance mobility in regions where traffic is often limited by the condition of the existing road network. At a time when Tunisia is working to both expand its highway network and upgrade existing infrastructure, the IDB's contribution is timely. According to the African Development Bank (AfDB), the degradation of the transport network continues to limit the economic potential of certain governorates. The AfDB also highlights the importance of the transport sector to the Tunisian economy, which accounts for about 5% of the country's GDP. Last year, the AfDB announced a funding of 80.1 million euros to support the improvement of the road network's condition. According to the Ministry of Equipment, the classified road network in Tunisia includes around 19,750 km of national, regional, and local roads, of which nearly 12,750 km are paved. The country also has approximately 360 km of highways and nearly 2,100 civil engineering and drainage structures. However, the main challenges lie in maintaining these infrastructures over time and ensuring they are effectively connected to local transport networks. Without this continuity, the improvements in the link between Tunis and the interior regions might have a limited impact on reducing logistics costs and integrating these territories into major economic flows.