Europe
It is in Europe.
The Channel Tunnel (or Chunnel) links England to France.The definition of infrastructure is vague but the infrastructure of Europe could include this tunnel.
The channel tunnel
to link Europe and England for commerce you can now travel to and fro by land
The Chunnel is an out-of-date name for the Channel Tunnel.
The chunnel comes out in Coquelles, a village near Calais.
The chunnel (actually the Channel Tunnel) connects England to France.
Positives: faster and better transportation Negatives: diseases spread, and it is easier for terrorist attacks, dangerous.
The Chunnel is a name that was sometimes used for the Channel Tunnel before it was built.
nothing
The Chunnel was excavated into chalk by the tunnel boring machines then was reinforced with concrete.