Supplementary Appendix to: Walking crowds on a shaky surface: The mechanics of stable walking predict Millennium bridge oscillations with and without pedestrian synchrony from Walking crowds on a shaky surface: stable walkers discover Millennium Bridge oscillations with and without pedestrian synchrony

Contains detailed equations of motion, additional mathematical and parametric information, additional figures exploring other parametric regimes, a table and a paragraph providing further discussion of the locomotion/biped model literature