TriangleCyclingFactorsInput    Input Object 
  Relative importance of optimization factors. Only effective for bicycling legs.
Invariant: safety + flatness + time == 1  
Fields
#
safety
     Ratio !
     Non-null
 Relative importance of cycling safety, but this factor can also include other concerns such as convenience and general cyclist preferences by taking into account road surface etc.
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  TransportMode