This includes running tracks above or below roadways to avoid railroad crossings and fencingoff areas to avoid collisions with animals, people and road vehicles.
这包括运行轨道要高于或低于现有铁路以避免平交道,与其他区域隔离以免与行人、动物、公路车辆碰撞。
2
The process of fencingoff seamounts is still at an early stage, though four clusters of them have been discovered and declared off-limits in the north-eastern Atlantic.