They also require strength and skill to operate, to avoid obstructions and other cable cars.

She was busy avoiding obstructions.

Drivers often cross the central reservation to avoid obstructions.

Chaumel increased the silver luminance of his chariot to help him avoid obstructions.

The boy came towards him, putting his feet down carefully to avoid hidden obstructions on the ground.

The pilot must be able to operate the aircraft with visual reference to the ground, and by visually avoiding obstructions and other aircraft.

As they drew away from the lava shield, the terrain became rougher, so that they had to correct course constantly to avoid rocky obstructions.

They also required physical strength and skill to operate, and alert operators to avoid obstructions and other cable cars.

A recurring problem was the inability of the tramcars to avoid obstructions.

As it retreated, Karen swiveled the remote camera's eye, making sure to avoid obstructions while ensuring that she didn't lose Jack and his sub.