1. Introduction 2. Modelling of Terrain Behavior 3. Measurement of Terrain Properties in Terramechanics 4. Bekker-Wong Terrain Parameters 5. Performance of Off-Road Vehicles 6. Modelling of Tracked Vehicle Performance 7. Advanced Physics-Based Model NTVPM for Performance of Vehicles with Flexible Tracks 8. Applications of the Model NTVPM to Parametric Analysis of Vehicles with Flexible Tracks 9. Advanced Physics-Based Model RTVPM for Performance of Vehicles with Long-Pitch Link Tracks 10. Modelling of Wheeled Vehicle Performance 11. Physics-Based Model NWVPM for Performance of Wheeled Vehicles 12. Applications of Terramechanics to the Study of Mobility of Extra-terrestrial Rovers and Their Running Gears