Abstract Military operations usually include movement over existing roads and also through natural terrain. Wooded terrain is one of the most challenging environments which affect vehicle mobility. The ability of a vehicle to cross a forest area depends on the possibility of determining if the vehicle is able to manoeuvre between tree stems or can override individual trees. Overriding tree obstacles can be more effective if a vehicle needs a shorter time to cross some tree stems rather than manoeuvring around them. Vehicle movement to cross a forest stand depends on vegetation factors as the stem diameter, stem spacing, and also on tree root parameters, which determine the mechanical tree stability, and a vehicle’s ability to override the trees. Also, the technical parameters (width, length, turning radius, weight, traction force) of the selected military vehicle are important to classify the cross-country movement options. This study describes both the theoretical predictions of the movement of vehicles in forest stands and summarizes the results of one of the most extensive testing of vehicles’ ability to cross individual trees.

中文翻译：

---

确定军用车辆覆盖植被的能力

摘要 军事行动通常包括在现有道路上和自然地形上的移动。树木繁茂的地形是影响车辆机动性的最具挑战性的环境之一。车辆穿越森林区域的能力取决于确定车辆是否能够在树干之间机动或可以超越个别树木的可能性。如果车辆需要更短的时间穿过某些树干而不是绕过它们，则越过树障碍会更有效。车辆穿越林分的移动取决于植被因素，如茎直径、茎间距，以及决定机械树木稳定性的树根参数，以及车辆超越树木的能力。还有技术参数（宽度、长度、转弯半径、重量、牵引力）对所选军用车辆的分类很重要。这项研究描述了车辆在林分中移动的理论预测，并总结了车辆穿越单棵树的能力的最广泛测试之一的结果。