The tunnel is dangerous when a fire breaks out. There is more traffic and more pollution. People who live next the rails are disturbed by the noise. It's not probable that a fire breaks out because there are full-automatically extinguishers and installationswhich report fire and smoke. Moreover, it is forbidden to transportdangerous goods.
Trains are better for the environment than cars and planes.
It is no problem to reduce the noise with noise protecting walls. Because it is cheaper to travel to England, it is also better forthe tourism. The work began in 1987 and ended in 1994 when Queen Elizabeth cut the red tape on May 6th. The small tube is used to make inspections and to escape if a fire should breakout. The trains normally drive from Coquelles near Calais to Cheriton near Dover in 35 minutes.