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Task 13.1 - SORA: Simulation of ground hazards and risk mitigation measures

This assignment helps the group understand inherent GRC (Ground Risk Class), risk mitigation through measures (M1 & M2), and the importance of defining an operational volume and a ground risk buffer.

 

Learning objectives:

  • Practical application of the Ground Risk Class (GRC) concept.
  • Identify and simulate strategic measures (M1) to reduce ground risk.
  • Understand operational volumes and ground risk buffers.
  • Participate in discussion around risk mitigation strategies.

 

Equipment:

  • Access to a safe, open outdoor space (schoolyard, park, or a large indoor space).
  • Cones, tape or other markers (or natural markers such as trees or lines).
  • Paper and pens/markers.
  • Optional: A simple map of the area (e.g. from Google Maps, free printing).

 

Instructions:

Scenario and setup:

  • Choose a hypothetical drone operation you could carry out in the area (e.g. inspecting a roof, filming a small incident).
  • Define "the drone": Imagine a size (e.g. under 3 meters) and a speed (e.g. 25 m/s).
  • Assess the population density of the area during the operation (e.g. "controlled ground area", "sparsely populated", "low density/residential area").
  • Estimate inherent GRC based on drone characteristics and population density. Discuss why this is a "baseline risk" before taking action.

 

Visualization of operation and risk buffer:

  • Physically mark out the "flight area"/"operating volume" with cones or tape.
  • Walk around the area and estimate and mark the "ground risk buffer" - the area where the drone can fall if something goes wrong. Use a 1:1 horizontal buffer in relation to the maximum flight height.

 

Implementation of measures:

  • Ideate at least two strategic actions (M1) to reduce GRC.
  • Simulate these measures:
  • M1A (Screening): Locate existing structures (buildings, trees) or describe how you could create sheltered zones.
  • M1B (Operational constraints): Discuss and simulate how you could fly before people arrive or follow specific routes.
  • M1C (Ground observation): Assign roles as "ground crew" to monitor the area and alert the "pilot".
  • Discuss how the measures could reduce GRC and assess the robustness (low, medium, high). It is not necessary to calculate exact GRC - focus on qualitative effect.

 

Summary discussion:

  • How did physically marking the area and simulating measures affect their understanding of ground risk?
  • What were the biggest challenges in reducing risk?
  • What would the measures cost in a real situation?