A comparison of the noise and vibration produced by two direct lay tracks (IM-PHYS-052)

A concrete lined, bored tunnel of diameter 4.7m, is being constructed for the Mersey Passenger Transport Executive (MPTE), as a loop line linking Liverpool Lime Street with Liverpool James Street station, as shown in fig. 1. This will facilitate a more rapid and denser commuter service from the Wirral, as...