When you transport heavy working machines or construction equipment, are you obliged to use steel ropes and wedges?

Yes, because every load, and particularly heavy machinery, must be properly secured to prevent it from shifting. Chocks immobilise the machine's wheels or tracks, preventing it from rolling on the platform. Due to the large mass of such equipment, heavy-duty tie-downs, usually made of steel, are required to finally secure it and prevent it from shifting during transport.