Project background Red Line tunnel from Harvard to Alewife was open for service in March of 1985 Floating Slab track was built to reduce vibration impacts to abutters from train operations. It is the for vibration mitigation. “gold standard” Track construction Floating – Slabs are 9’x5’ concrete blocks sitting on rubber disks which sits on the tunnel floor 4 October 16, 2012 | Leading the Nation in Transportation Excellence |
Project background Red Line tunnel from Harvard to Alewife was open for service in March of 1985 Floating Slab track was built to reduce vibration impacts to abutters from train operations. It is the “gold standard” for vibration mitigation. Track construction – Floating Slabs are 9’x5’ concrete blocks sitting on rubber disks which sits on the tunnel floor 4 October 16, 2012 | Leading the Nation in Transportation Excellence |
Harvard%20to%20Alewife.docx