Thirty mega projects of the world
Its start from transportation of humans. people are still working on to modifying the transportation service by making more tunnels and more high quality tracks.while this thought comes its also start a very big competition in which all countries taking a part.
A new world's longest and deepest rail tunnel cuts through the mountains in Switzerland. Construction went on for nearly 20 years, but the Gotthard Base Tunnel inside the Swiss Alps finally opened in 2016, moving rail cars of passengers and freight between Zurich, Switzerland, and Milan, Italy. At 35 miles long and dipping about 7,500 feet below the mountain peaks above it, the Gotthard Base Tunnel eliminates the need for winding mountainous routes by offering the first flat-track route through the Alps.
Channel Tunnel, U.K./France
Channel Tunnel, U.K./France
Impressive in scope, use, and engineering, the Chunnel stretches 31 miles under the English Channel, connecting the United Kingdom to France with what it actually a total of three tunnels. The six-year project created two 25-foot-wide tunnels for trains that run 365 days per year and reach speeds of nearly 100 miles per hour while a third tunnel exists as an emergency escape tunnel. Intricate systems of piston-operated air ducts and coolant pipes alleviate the pressure of the trains and the heat of the tracks. Traveling for 23 miles under the English Channel, the tunnel is one of the longest undersea passageways in the world, dipping to depths of 246 feet below the seabed.
Construction kicked off in 2014 on a Japanese maglev line that will connect Tokyo to Nagoya by 2027 and then eventually to Osaka. Costing well into the double-digit billions when all said (early estimates of $52 billion are just that, early), the plan calls for Tokyo and Nagoya travel to take just 40 minutes as the trains run up to 314 mph. The 178-mile line will go mainly underground and through tunnels for a railway project never seen at this scale.
Red, blue, green and gold signify the colors of the ambitious Doha Metro Line currently under construction in Qatar. Over the course of the project, Doha will add more than 131 miles of light rail track and eventually hopes to reach 100 stations (about 60 stations are under construction now). At a peak of over 60 mph, Doha expects to showcase the fastest driverless trains in the world as the new line opens in phases between 2019 and 2016.
Construction kicked off in 2014 on a Japanese maglev line that will connect Tokyo to Nagoya by 2027 and then eventually to Osaka. Costing well into the double-digit billions when all said (early estimates of $52 billion are just that, early), the plan calls for Tokyo and Nagoya travel to take just 40 minutes as the trains run up to 314 mph. The 178-mile line will go mainly underground and through tunnels for a railway project never seen at this scale
Countless billions of dollars have already been spent since the world’s largest environmental cleanup project started in 1989 at the Hanford Nuclear Waste Site in southeastern Washington state. From about 1943 to 1987, Hanford at times had nine nuclear reactors and five plutonium processing complexes running in order to create a nuclear arsenal and the ongoing cleanup effort—with no real end in sight—includes turning 53 million gallons of radioactive sludge-like liquid in 177 underground tanks into vitrified glass for long-term safe storage.
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