An investigation into APT-E train lateral ride performance using a computer model prior to trials in September 1973 (IM-DOS-009)

4. CONCLUSIONS 4.1 The dominant modes are the upper sway between 1.0 and 1.2 Hz, when rail joint excitations are neglected. 4.2 The damping in these modes decreases with speed for conicities below 0.1. 4.3 Trailer car accelerations will reach 3-5%g RMS between triaxial joints in response...