Regardless of the material used to produce barriers; steel or flexible, some parameters shall be taken into consideration in design.

These;
Fall energy
Fall speed
Impact height
Determination of the correct point on the slope
Problems in application

Steel barriers are designed in European standards with capacities from 500 kjoul to 5.000 kjoul. These are used according to project need as calculated based on energy level and bouncing height.

Possible rock falls are animated with special software in barrier design and after determining their fall energy and falling route, correct material is chosen with consideration to maximum bouncing height.

Figure on the side shows a fall animation by a software.