What should be provided at locations of sudden changes in overhead clearance along haulage roads?

In mining operations, especially along haulage roads, sudden changes in overhead clearance can pose significant risks to operators and equipment. Providing warning lights or reflectors at these locations is crucial because they enhance visibility, allowing operators to be aware of the changing conditions ahead. This is particularly important in low-light situations or in areas where natural lighting is insufficient.

The use of warning lights or reflectors serves as a proactive safety measure. They can quickly alert drivers to potential hazards, giving them time to adjust their speed or maneuver appropriately. Moreover, these visual aids can be designed to be highly visible even at night or in adverse weather conditions, thereby minimizing the risk of accidents.

While warning signs may inform drivers about dangers, and safety barriers serve to prevent vehicles from straying into unsafe areas, neither of these options provides the same immediate and dynamic alert as lights or reflectors do. Extra personnel, although helpful for monitoring and assistance, do not offer an immediate visual cue to operators, which is essential in fast-moving environment such as haulage roads.

Thus, warning lights or reflectors are the most effective solution for ensuring safety at locations where overhead clearance suddenly changes.