Rockfall Hazard Rating System

The Rockfall Hazard Rating System (RHRS) is a tool used to evaluate the risk of rockfalls along roadway or hillside areas. It considers factors like the number and size of rocks that could fall, the steepness of the slope, the presence of cracks or loose material, and how often rockfalls have occurred in the past. By analyzing these elements, the system assigns a hazard level—low, moderate, or high—helping engineers and planners prioritize safety measures and necessary mitigation efforts to reduce potential hazards to people and infrastructure.