Cairo has become the largest megalopolis in North Africa. Its growth has required increasing transport and traffic-easing resources. As a result, the Al Azhar tunnel project was devised to connect the area west of the city centre with the city’s historic centre. The Fatimid city, which dates from the 10th century is located in one of the most popular shopping areas in Egypt, which includes the Khan El Khalily district and the spice market. The area features architectural treasures, including mosques, the famous Sunni Al Azhar University, and glorious palaces. A decision was made to build an underground urban roadway to ease traffic conditions between Salah Salem Street, which connects the airport to the city centre, and Ataba Square. The project would also showcase this district popular with tourists and provide access to major thoroughfares.