weights.py

class RoutingWeights:
  def __init__(self):
    self.Weightings = {
      'motorway': {'car':10},
      'trunk':    {'car':10, 'cycle':0.05},
      'primary':  {'cycle': 0.3, 'car':2, 'foot':1, 'horse':0.1},
      'secondary': {'cycle': 1, 'car':1.5, 'foot':1, 'horse':0.2},
      'tertiary': {'cycle': 1, 'car':1, 'foot':1, 'horse':0.3},
      'unclassified': {'cycle': 1, 'car':1, 'foot':1, 'horse':1},
      'minor': {'cycle': 1, 'car':1, 'foot':1, 'horse':1},
      'cycleway': {'cycle': 3, 'foot':0.2},
      'residential': {'cycle': 3, 'car':0.7, 'foot':1, 'horse':1},
      'track': {'cycle': 1, 'car':1, 'foot':1, 'horse':1, 'mtb':3},
      'service': {'cycle': 1, 'car':1, 'foot':1, 'horse':1},
      'bridleway': {'cycle': 0.8, 'foot':1, 'horse':10, 'mtb':3},
      'footway': {'cycle': 0.2, 'foot':1},
      'steps': {'foot':1, 'cycle':0.3},
      'rail':{'train':1},
      'light_rail':{'train':1},
      'subway':{'train':1}
      }

  def get(self, transport, wayType):
    try:
      return(self.Weightings[wayType][transport])
    except KeyError:
      # Default: if no weighting is defined, then assume it can't be routed
      return(0)