1.   Eurotunnel is actually three tunnels, two that take trains in opposite directions and a smaller service tunnel in the middle.

2.   Like Singapore, Yokohama had expanded onto reclaimed land and used common service tunnels.

3.   Now they inhabit the sewers and the subway service tunnels.

4.   Trained as a civil engineer, Lees works as a site engineer at the new airport, building service tunnels under the runways.

5.   The Chunnel has two rail tunnels and a service tunnel.

6.   The engineer opened the door to evacuate the passengers into the adjacent service tunnel but the smoke was too thick, Costa said.

7.   The tunnel consists of two railway lines and a central service tunnel which runs between the two.

8.   There is also a third service tunnel.

9.   Two maintenance workers were injured early Saturday when their car was hit by another vehicle in a service tunnel under the English Channel.

10.   A spokesman for the company said the passengers were evacuated into a service tunnel and safety in only four minutes.