Taxonomy

for

Connected Cooperative and Automated Mobility (CCAM)

Minimal risk manoeuvre (MRM)

Added:16-05-2023
Contributor:FAME

Current consensus

Minimal risk manoeuvre means a manoeuvre aimed at minimising risks in traffic by stopping the vehicle in a safe condition, for example, minimal risk conditions.

Explanation

Minimal or minimum risk manoeuvre is the tactical or operational manoeuvre triggered and executed by the driving automation system or the human driver to achieve the minimal risk condition.

  • Michon (1985)10 defines operational driving functions as those delivered over a time constant of milliseconds and include tasks such as steering inputs to keep within a lane or braking to avoid an ermgering hazard
  • Tactical driving functions are those delivered over a time constant of seconds and include tasks such as lane choice, gap acceptance and overtaking
  • The form of the MRM will be highly dependent on (and must be within) the operational design domain of the automated vehicle, for example, the MRM performed by a vehicle performing automated driving at freeflow speed on a highway may be ver different to that performed by a low speed automated shuttle operating in an urban environment. A remotely operated vehicle dependent on external communication will trigger the MRM if the communication link degrades below a minimum acceptable level of performance
  • This definition includes actions taken by a remote driver to bring a vehicle to the minimal risk condition.
Related terms: Minimal risk condition
Context:
Vehicle

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Taxonomy for Connected Cooperative and Automated Mobility (CCAM) v1.0.0 | Funded by the EU HORIZON programme | © All rights reserved 2024