Responding to a question, Tim Green said that the figures shown in his presentation did not reflect the combined English and French work forces. At peak, the total number of workers from both England and France was approximately 15,000. The Channel Tunnel will finally have required about 74,000 man-years of construction work.
Participants were also curious about the differences in English and French safety regulations. The English and French have very different safety cultures and regulatory styles. In particular, the electrical requirements of the two nations are entirely different. However, the Channel Tunnel project permanently links the two together. Mr. Green anticipates that the project will have to maintain its own set of electrical regulations, representing a compromise negotiated between the two countries.
Another, more common example of the difference in cultures and national regulatory styles is the issue of smoking and drinking alcohol in the work place. English health and safety laws do not allow either activity, but French workers do both; they sometimes share cigarettes with their English colleagues at the midpoint, and bottles of champagne have also been available on special occasions.