On December 21, Nobuhiro Maeda, president and representative director of Metropolitan Expressway, held a press conference to explain the renewal plan.
Of these, nearly 60 years have passed since the No. 1 Haneda Line Haneda Tunnel opened to traffic in August 1964. Leaks, corrosion of reinforcing steel, and concrete peeling have occurred, especially at the joints of the structure, and repairs have been made repeatedly, while emergency traffic restrictions have increased in frequency each year.
The explanation is that drastic measures are needed for the tunnel frame, specifically repair and renewal of damaged parts, but since the average weekday traffic volume of the Haneda Tunnel is about 90,000 vehicles and the tunnel is congested in the morning, the tunnel bypass route, including the Haneda movable bridge, which is currently out of operation, will be utilized to provide a detour route. The tunnel bypass route, including the Haneda movable bridge, which is currently out of operation, will be used to provide a detour route.
The revised plan was also presented to operate the detour as the main line after construction, with three elevated lanes in the up direction and a route in the tunnel for down traffic only plus the west exit of the airport.
© Source travel watch
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