• Obama's infrastructure planObama proposes ambitious $50 billion infrastructure program

    President Barack Obama unveiled an ambitious 6-year infrastructure investment program; its goals include building or repairing 150,000 miles of roads, 4,000 miles of rail lines, and 150 miles of airplane runways; the plan also includes a new air-traffic-control system designed to reduce flight delays, and an “infrastructure bank” that will help determine the worthiest projects

  • Transportation industry eager for more details of infrastructure plan

    The White House released an information sheet that tells in broad strokes how the administration plans to use the money but did not say how much it will spend on different transportation segments or how soon it will ask Congress for the money; industry groups want to know

  • Tunnel visionThe world's longest tunnel to open 15 October

    At 57 kilometers, the Gotthard tunnel, connecting Zurich and Milan, will be the world’s longest tunnel; constructing the tunnel, which opens on 15 October, required the excavation of m an estimated 24 million tons of rock at a cost of $9.5 billion

  • Clean constructionNew cement absorbs CO2

    Concrete — the essential material used by the world’s $3.8 trillion construction industry — accounts for 5 percent of the world’s man-made carbon dioxide emissions; each ton of cement emits about 800 kg (1,763 lb.) of CO2 during manufacture — and every year, some 3 billion tons of cement turn into nearly 30 billion tons of concrete, a British start-up has devised a new cement — based on magnesium silicates rather than limestone — that absorbs and stores CO2 when it is produced