Floating Slab of the Athens Metro, Greece

The extension of the Athens Metro is the largest ongoing construction project in Greece. The design and construction of two new Metro lines with a total length of 18 km and 21 new stations, is expected to significantly alleviate the severe traffic problems of Athens by accommodating approximately 450,000 passengers daily. Part of the Metro went into service in October 2001, and the remaining lines should be completed for the 2004 Olympics.