155 lines
7.8 KiB
Python
155 lines
7.8 KiB
Python
#!/usr/bin/env python
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from datetime import datetime, timedelta
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from aman.config.RunwaySequencing import RunwayAssignmentType
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from aman.sys.aco.Configuration import Configuration
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from aman.sys.aco.Constraints import SpacingConstraints
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from aman.sys.aco.Node import Node
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class RunwayManager:
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def __init__(self, configuration : Configuration):
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self.Spacings = SpacingConstraints()
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self.Configuration = configuration
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# initialize the tracker which inbound arrives at which runway
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self.RunwayInbounds = {}
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if None != configuration.PreceedingInbounds:
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for runway in configuration.PreceedingInbounds:
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self.RunwayInbounds[runway] = configuration.PreceedingInbounds[runway]
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for runway in configuration.RunwayConstraints.ActiveArrivalRunways:
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if not runway.Runway.Name in self.RunwayInbounds:
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self.RunwayInbounds[runway.Runway.Name] = None
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def calculateEarliestArrivalTime(self, runway : str, node : Node, useETA : bool, earliestArrivalTime : datetime):
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constrainedETA = None
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if None != self.RunwayInbounds[runway]:
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# get the WTC based ETA
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if None == self.RunwayInbounds[runway].Inbound.WTC or None == node.Inbound.WTC:
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spacingWTC = 3
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else:
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spacingWTC = self.Spacings[self.RunwayInbounds[runway].Inbound.WTC][node.Inbound.WTC]
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# get the runway time spacing
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spacingRunway = self.Configuration.RunwayConstraints.findRunway(runway).Spacing
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constrainedETA = self.RunwayInbounds[runway].Inbound.PlannedArrivalTime + timedelta(minutes = max(spacingWTC, spacingRunway) / (node.Inbound.PerformanceData.SpeedApproach / 60))
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# calculate the arrival times for the dependent inbounds
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for dependentRunway in self.Configuration.RunwayConstraints.findDependentRunways(runway):
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if None != self.RunwayInbounds[dependentRunway.Runway.Name]:
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candidate = self.RunwayInbounds[dependentRunway.Runway.Name].Inbound.PlannedArrivalTime + timedelta(minutes = 3 / (node.Inbound.PerformanceData.SpeedApproach / 60))
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if None == constrainedETA or candidate > constrainedETA:
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constrainedETA = candidate
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# get the arrival time on the runway of the inbound
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if True == useETA:
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arrivalTime = node.ArrivalCandidates[runway].EarliestArrivalTime
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else:
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arrivalTime = node.ArrivalCandidates[runway].InitialArrivalTime
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if None == constrainedETA:
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eta = max(arrivalTime, earliestArrivalTime)
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else:
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eta = max(constrainedETA, earliestArrivalTime)
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return eta, eta - arrivalTime
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def selectShallShouldMayArrivalRunway(self, node : Node, runways, useETA : bool, earliestArrivalTime : datetime):
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candidate = None
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delay = None
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for runway in runways:
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if True == useETA:
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reference = node.ArrivalCandidates[runway.Runway.Name].EarliestArrivalTime
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else:
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reference = node.ArrivalCandidates[runway.Runway.Name].InitialArrivalTime
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eta, _ = self.calculateEarliestArrivalTime(runway.Runway.Name, node, useETA, earliestArrivalTime)
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if None == delay:
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delay = eta - reference
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candidate = runway
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elif delay > (eta - reference):
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delay = eta- reference
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candidate = runway
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return candidate
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def executeShallShouldMayAssignment(self, node : Node, useETA : bool, earliestArrivalTime : datetime):
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shallRunways = []
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shouldRunways = []
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mayRunways = []
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for runway in self.Configuration.RunwayConstraints.ActiveArrivalRunways:
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# test the shall assignments
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if RunwayAssignmentType.AircraftType in runway.ShallAssignments:
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if node.Inbound.Report.aircraft.type in runway.ShallAssignments[RunwayAssignmentType.AircraftType]:
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shallRunways.append(runway)
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if RunwayAssignmentType.GateAssignment in runway.ShallAssignments:
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if node.Inbound.Report.plannedGate in runway.ShallAssignments[RunwayAssignmentType.GateAssignment]:
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shallRunways.append(runway)
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# test the should assignments
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if RunwayAssignmentType.AircraftType in runway.ShouldAssignments:
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if node.Inbound.Report.aircraft.type in runway.ShouldAssignments[RunwayAssignmentType.AircraftType]:
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shouldRunways.append(runway)
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if RunwayAssignmentType.GateAssignment in runway.ShouldAssignments:
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if node.Inbound.Report.plannedGate in runway.ShouldAssignments[RunwayAssignmentType.GateAssignment]:
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shouldRunways.append(runway)
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if True == useETA:
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reference = node.ArrivalCandidates[runway.Runway.Name].EarliestArrivalTime
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else:
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reference = node.ArrivalCandidates[runway.Runway.Name].InitialArrivalTime
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# test the may assignments
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if RunwayAssignmentType.AircraftType in runway.MayAssignments:
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if node.Inbound.Report.aircraft.type in runway.MayAssignments[RunwayAssignmentType.AircraftType]:
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eta, _ = self.calculateEarliestArrivalTime(runway.Runway.Name, node, useETA, earliestArrivalTime)
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if (eta - reference) <= self.Configuration.AirportConfiguration.MaxDelayMay:
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mayRunways.append(runway)
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if RunwayAssignmentType.GateAssignment in runway.MayAssignments:
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if node.Inbound.Report.plannedGate in runway.MayAssignments[RunwayAssignmentType.GateAssignment]:
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eta, _ = self.calculateEarliestArrivalTime(runway.Runway.Name, node, useETA, earliestArrivalTime)
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if (eta - reference) <= self.Configuration.AirportConfiguration.MaxDelayMay:
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mayRunways.append(runway)
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runway = self.selectShallShouldMayArrivalRunway(node, shallRunways, useETA, earliestArrivalTime)
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if None != runway:
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return [ runway ]
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runway = self.selectShallShouldMayArrivalRunway(node, shouldRunways, useETA, earliestArrivalTime)
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if None != runway:
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return [ runway ]
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runway = self.selectShallShouldMayArrivalRunway(node, mayRunways, useETA, earliestArrivalTime)
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if None != runway:
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return [ runway ]
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return self.Configuration.RunwayConstraints.ActiveArrivalRunways
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def selectArrivalRunway(self, node : Node, useETA : bool, earliestArrivalTime : datetime):
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availableRunways = self.Configuration.RunwayConstraints.ActiveArrivalRunways
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if True == self.Configuration.RunwayConstraints.UseShallShouldMay:
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availableRunways = self.executeShallShouldMayAssignment(node, useETA, earliestArrivalTime)
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else:
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availableRunways = self.Configuration.RunwayConstraints.ActiveArrivalRunways
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if 0 == len(availableRunways):
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runway = self.Configuration.RunwayConstraints.ActiveArrivalRunways[0]
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return runway, self.calculateEarliestArrivalTime(runway.Runway.Name, node, useETA, earliestArrivalTime)
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# start with the beginning
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selectedRunway = None
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lostTime = None
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eta = None
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# get the runway with the earliest ETA
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for runway in availableRunways:
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candidate, delta = self.calculateEarliestArrivalTime(runway.Runway.Name, node, useETA, earliestArrivalTime)
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if None == eta or eta > candidate:
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selectedRunway = runway.Runway
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lostTime = delta
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eta = candidate
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return selectedRunway, eta, lostTime
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