Final answer:
To safely travel up a ramp with an obstructive load, a signal person should guide the operator. This ensures clear direction and obstacle-free passage, similar to the role of a guide dog for a visually impaired person.
Step-by-step explanation:
When you need to travel up the ramp with a load that obscures your view, it's vital to take safety into consideration. To ensure safe operation, the equipment should be driven forward while using a signal person to guide the operator. The signal person plays a critical role by providing direction and ensuring that the path is clear of obstacles, effectively being the eyes of the operator. The role of a signal person is analogous to the guide in our provided references, such as the guide dog for the visually impaired person or the man marking his line of travel while carrying the girl. Both examples rely on a trusted guide to navigate safely in situations with limited vision. It's also important to choose a positive direction to maintain a consistent and safe course, much like when handling materials with obstructed visibility.