Just over two months before being completed, the Tetteh Quarshie Interchange in Ghana’s capital city of Accra was first opened to traffic. The two-level roadway junction, which features non-directional loop ramps, is formally known as a cloverleaf interchange because of its resemblance to a four-leaf clover when viewed from above or depicted on maps. The... Continue Reading →
A pivotal moment took place in the development of the Simplon Tunnel, a railway tunnel running through the Alps in the vicinity of Simplon Pass and linking the city of Brig (now part of Brig-Glis) in southwestern Switzerland with northern Italy’s Piedmont region. More than six years after the construction project began, both halves of... Continue Reading →
