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Update DRT estimate and teleport module (#3333)
Re-organizing the DRT estimation scripts. For more details, please see detailed description above.
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...ribs/drt/src/main/java/org/matsim/contrib/drt/estimator/impl/DetourBasedDrtEstimator.java
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.../drt/src/main/java/org/matsim/contrib/drt/estimator/impl/DirectTripBasedDrtEstimator.java
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| Original file line number | Diff line number | Diff line change |
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| package org.matsim.contrib.drt.estimator.impl; | ||
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| import org.checkerframework.checker.units.qual.C; | ||
| import org.matsim.api.core.v01.Id; | ||
| import org.matsim.api.core.v01.network.Link; | ||
| import org.matsim.contrib.drt.estimator.DrtEstimator; | ||
| import org.matsim.contrib.drt.estimator.impl.distribution.DistributionGenerator; | ||
| import org.matsim.contrib.drt.estimator.impl.distribution.LogNormalDistributionGenerator; | ||
| import org.matsim.contrib.drt.estimator.impl.distribution.NoDistribution; | ||
| import org.matsim.contrib.drt.estimator.impl.distribution.NormalDistributionGenerator; | ||
| import org.matsim.contrib.drt.estimator.impl.trip_estimation.ConstantRideDurationEstimator; | ||
| import org.matsim.contrib.drt.estimator.impl.trip_estimation.RideDurationEstimator; | ||
| import org.matsim.contrib.drt.estimator.impl.waiting_time_estimation.ConstantWaitingTimeEstimator; | ||
| import org.matsim.contrib.drt.estimator.impl.waiting_time_estimation.WaitingTimeEstimator; | ||
| import org.matsim.contrib.drt.routing.DrtRoute; | ||
| import org.matsim.core.utils.misc.OptionalTime; | ||
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| /** | ||
| * DRT estimator that uses available data (e.g., real-world operational data, simulation-based data) to provide estimated data for DRT trips. | ||
| */ | ||
| public final class DirectTripBasedDrtEstimator implements DrtEstimator { | ||
| private final RideDurationEstimator rideDurationEstimator; | ||
| private final WaitingTimeEstimator waitingTimeEstimator; | ||
| private final DistributionGenerator waitingTimeDistributionGenerator; | ||
| private final DistributionGenerator rideTimeDistributionGenerator; | ||
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| public static class Builder { | ||
| // Initialize with default estimation | ||
| private RideDurationEstimator rideDurationEstimator = new ConstantRideDurationEstimator(1.25, 300); | ||
| private WaitingTimeEstimator waitingTimeEstimator = new ConstantWaitingTimeEstimator(300); | ||
| private DistributionGenerator waitingTimeDistributionGenerator = new NoDistribution(); | ||
| private DistributionGenerator rideTimeDistributionGenerator = new NoDistribution(); | ||
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| public Builder setRideDurationEstimator(RideDurationEstimator rideDurationEstimator) { | ||
| this.rideDurationEstimator = rideDurationEstimator; | ||
| return this; | ||
| } | ||
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| public Builder setWaitingTimeEstimator(WaitingTimeEstimator waitingTimeEstimator) { | ||
| this.waitingTimeEstimator = waitingTimeEstimator; | ||
| return this; | ||
| } | ||
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| public Builder setRideDurationDistributionGenerator(DistributionGenerator rideTimeDistributionGenerator) { | ||
| this.rideTimeDistributionGenerator = rideTimeDistributionGenerator; | ||
| return this; | ||
| } | ||
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| public Builder setWaitingTimeDistributionGenerator(DistributionGenerator waitingTimeDistributionGenerator) { | ||
| this.waitingTimeDistributionGenerator = waitingTimeDistributionGenerator; | ||
| return this; | ||
| } | ||
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| public DirectTripBasedDrtEstimator build() { | ||
| return new DirectTripBasedDrtEstimator(rideDurationEstimator, waitingTimeEstimator, rideTimeDistributionGenerator, waitingTimeDistributionGenerator); | ||
| } | ||
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| } | ||
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| public DirectTripBasedDrtEstimator(RideDurationEstimator rideDurationEstimator, WaitingTimeEstimator waitingTimeEstimator, | ||
| DistributionGenerator rideTimeDistribution, DistributionGenerator waitTimeDistribution) { | ||
| this.rideDurationEstimator = rideDurationEstimator; | ||
| this.waitingTimeEstimator = waitingTimeEstimator; | ||
| this.rideTimeDistributionGenerator = rideTimeDistribution; | ||
| this.waitingTimeDistributionGenerator = waitTimeDistribution; | ||
| } | ||
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| /** | ||
| * Example DRT estimator based on the normal distributed ride time and waiting time | ||
| * @param estRideTimeAlpha typical ride duration = alpha * direct ride time + beta, alpha is specified here | ||
| * @param estRideTimeBeta typical ride duration = alpha * direct ride time + beta, beta is specified here | ||
| * @param rideTimeStd standard deviation of ride duration (normalized to 1) | ||
| * @param estMeanWaitTime estimated waiting time (i.e., mean wait time) | ||
| * @param waitTimeStd standard deviation of waiting time (normalized to 1) | ||
| * @return NetworkBasedDrtEstimator | ||
| */ | ||
| public static DirectTripBasedDrtEstimator normalDistributedNetworkBasedDrtEstimator(double estRideTimeAlpha, double estRideTimeBeta, | ||
| double rideTimeStd, double estMeanWaitTime, | ||
| double waitTimeStd) { | ||
| return new Builder() | ||
| .setWaitingTimeEstimator(new ConstantWaitingTimeEstimator(estMeanWaitTime)) | ||
| .setRideDurationEstimator(new ConstantRideDurationEstimator(estRideTimeAlpha, estRideTimeBeta)) | ||
| .setWaitingTimeDistributionGenerator(new NormalDistributionGenerator(1, waitTimeStd)) | ||
| .setRideDurationDistributionGenerator(new NormalDistributionGenerator(2, rideTimeStd)) | ||
| .build(); | ||
| } | ||
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| /** | ||
| * Example DRT estimator based on the log-normal distributed ride time and normal distributed waiting time | ||
| * @param estRideTimeAlpha typical ride duration = alpha * direct ride time + beta, alpha is specified here | ||
| * @param estRideTimeBeta typical ride duration = alpha * direct ride time + beta, beta is specified here | ||
| * @param mu log-normal distribution parameter for ride duration (normalized to typical ride duration) | ||
| * @param sigma log-normal distribution parameter for ride duration (normalized to typical ride duration) | ||
| * @param estMeanWaitTime estimated waiting time (i.e., mean wait time) | ||
| * @param waitTimeStd standard deviation of waiting time (normalized to 1) | ||
| * @return NetworkBasedDrtEstimator | ||
| */ | ||
| public static DirectTripBasedDrtEstimator mixDistributedNetworkBasedDrtEstimator(double estRideTimeAlpha, double estRideTimeBeta, | ||
| double mu, double sigma, double estMeanWaitTime, | ||
| double waitTimeStd) { | ||
| return new Builder() | ||
| .setWaitingTimeEstimator(new ConstantWaitingTimeEstimator(estMeanWaitTime)) | ||
| .setRideDurationEstimator(new ConstantRideDurationEstimator(estRideTimeAlpha, estRideTimeBeta)) | ||
| .setWaitingTimeDistributionGenerator(new NormalDistributionGenerator(1, waitTimeStd)) | ||
| .setRideDurationDistributionGenerator(new LogNormalDistributionGenerator(2, mu, sigma)) | ||
| .build(); | ||
| } | ||
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| @Override | ||
| public Estimate estimate(DrtRoute route, OptionalTime departureTime) { | ||
| double directRideTIme = route.getDirectRideTime(); | ||
| double directDistance = route.getDistance(); | ||
| Id<Link> fromLinkId = route.getStartLinkId(); | ||
| Id<Link> toLinkId = route.getEndLinkId(); | ||
| double typicalRideDuration = rideDurationEstimator.getEstimatedRideDuration(fromLinkId, toLinkId, departureTime, directRideTIme); | ||
| double typicalRideDistance = (typicalRideDuration / directRideTIme) * directDistance; | ||
| double typicalWaitingTime = waitingTimeEstimator.estimateWaitTime(fromLinkId, toLinkId, departureTime); | ||
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| double estimatedWaitingTime = typicalWaitingTime * waitingTimeDistributionGenerator.generateRandomValue(); | ||
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| double detourRandomFactor = rideTimeDistributionGenerator.generateRandomValue(); | ||
| double estimatedRideDuration = detourRandomFactor * typicalRideDuration; | ||
| double estimatedRideDistance = detourRandomFactor * typicalRideDistance; | ||
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| double acceptanceRate = 1.0; | ||
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| return new Estimate(estimatedRideDistance, estimatedRideDuration, estimatedWaitingTime, acceptanceRate); | ||
| } | ||
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| } |
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