The world's largest underground interchange was opened recently connecting No. 3 Expressway. The total length?
The world's largest underground interchange was opened recently connecting No. 3 Expressway. The total length of the interchange is 3.1 kilometres and took two years to complete this interchange. As this interchange is located right close to the Imperial palace, the constructors tried their utmost their responsibility to make quite and huge ventilation boxes are lined up on the bank of the palace moats to take out gas and smoke caused by cars in the tunnel for outside using electric ventilators. The constructors is required to pay much more attention not to destroy beauty of the palace ground and background. It costs around 14,000,000. (Sterlings). By the completion of this interchange, all traffic from the centre of the city especially the government buildings areas to northern parts of the city and Tokyo International airport have become very convenient and it will take only 20 minutes either to airport or northern part of city where the national stadium, olympic village and other Olympic athletic place are gathered. By the completion of this interchange, almost Tokyo Express highway are completed just three weeks before the Olympic Games..