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add the IAF spacing constraint to the arrival estimation

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Sven Czarnian
2021-12-22 13:29:36 +01:00
parent b441b945b9
commit 97c7173313
1 changed files with 35 additions and 0 deletions
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35
aman/sys/aco/RunwayManager.py
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@@ -141,6 +141,41 @@ class RunwayManager:
lostTime = delta
eta = candidate
# find the corresponding IAF
iaf = node.ArrivalCandidates[selectedRunway.Name].ArrivalRoute[0].Waypoint.Name
if iaf in self.IafInbounds:
delta = 100000.0
targetLevel = None
# find the planned level
for level in self.IafInbounds[iaf]:
difference = abs(level - node.ArrivalCandidates[selectedRunway.Name].ArrivalRoute[0].Altitude)
if difference < delta:
delta = difference
targetLevel = level
if targetLevel in self.IafInbounds[iaf]:
# check if we have to lose time to ensure the IAF spacing
# the function assumes that model allows only TTG during flight to IAF
if None != self.IafInbounds[iaf][targetLevel]:
if None != self.IafInbounds[iaf][targetLevel].Inbound.PlannedArrivalRoute:
# ETA at IAF of preceeding traffic
plannedDelta = self.IafInbounds[iaf][targetLevel].Inbound.PlannedArrivalTime - self.IafInbounds[iaf][targetLevel].Inbound.EnrouteArrivalTime
iafETAPreceeding = self.IafInbounds[iaf][targetLevel].Inbound.PlannedArrivalRoute[0].ETA + plannedDelta
# ETA at IAF of current inbound
plannedDelta = eta - node.Inbound.EnrouteArrivalTime
iafETACurrent = node.ArrivalCandidates[selectedRunway.Name].ArrivalRoute[0].ETA
# required time delte to ensure IAF spacing
timeSpacing = timedelta(hours = self.Configuration.AirportConfiguration.IafSpacing / node.ArrivalCandidates[selectedRunway.Name].ArrivalRoute[0].GroundSpeed)
# we are too close to preceeding traffic
currentTimeSpacing = iafETACurrent - iafETAPreceeding
if timeSpacing > currentTimeSpacing:
eta = eta + (timeSpacing - currentTimeSpacing)
lostTime += (timeSpacing - currentTimeSpacing)
return selectedRunway, eta, lostTime
def registerNode(self, node : Node, runway : str):