🎛️ Operational & Engineering Parameters To move massive tonnage through the extreme topography of the Algerian interior, ANESRIF (the state railway engineering agency) has designed the line to separate passenger performance from freight traction: The Tonnage Formula: The line implements a heavy-haul track architecture using 60 kg/m UIC rails laid on monolithic prestressed concrete sleepers. This allows a maximum axle load of 22.5 to 25 tons , enabling single freight convoys to pull up to 6,000 gross tons of cargo. The Desert Speed Trade-off: While passenger locomotives will utilize high-horsepower diesel traction to slice through the desert at 220 km/h , freight convoys are restricted to 100 km/h . This lower velocity is mathematically optimized to manage kinetic track stress under blistering ambient temperatures exceeding 50°C and to prevent sand-abrasion derailments. The Sand Mitigation Suite: Shifting Saharan dunes pose a permanent operational threat. The project utilizes ...