The blocking of tunnel ventilation shafts using inflatable bags (IM-AERO-053)

As part of a programme of research into the transient pressures caused by train motion in tunnels, a full scale experiment was carried out using Milford Tunnel (Derby-Sheffield line) and two test trains. The test runs were on two weekends (30 July - 1 August and 7-8 August 1971) and...