diff --git a/src/main/java/org/matsim/run/prepare/PrepareDrtScenarioAgents.java b/src/main/java/org/matsim/run/prepare/PrepareDrtScenarioAgents.java
new file mode 100644
index 0000000..430c052
--- /dev/null
+++ b/src/main/java/org/matsim/run/prepare/PrepareDrtScenarioAgents.java
@@ -0,0 +1,143 @@
+package org.matsim.run.prepare;
+
+import com.google.common.collect.Lists;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.locationtech.jts.geom.Geometry;
+import org.matsim.api.core.v01.TransportMode;
+import org.matsim.api.core.v01.network.Link;
+import org.matsim.api.core.v01.network.Network;
+import org.matsim.api.core.v01.population.*;
+import org.matsim.application.MATSimAppCommand;
+import org.matsim.application.options.ShpOptions;
+import org.matsim.core.network.NetworkUtils;
+import org.matsim.core.population.PopulationUtils;
+import org.matsim.core.router.AnalysisMainModeIdentifier;
+import org.matsim.core.router.DefaultAnalysisMainModeIdentifier;
+import org.matsim.core.router.TripStructureUtils;
+import org.matsim.core.utils.geometry.geotools.MGC;
+import picocli.CommandLine;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.List;
+
+@CommandLine.Command(
+	name = "prepare-drt-agents",
+	description = "Manually create drt plans for agents with pt trips within the drt service area."
+)
+public class PrepareDrtScenarioAgents implements MATSimAppCommand {
+	private static final Logger log = LogManager.getLogger(PrepareDrtScenarioAgents.class);
+
+	@CommandLine.Parameters(arity = "1", paramLabel = "INPUT", description = "Path to input population")
+	private Path input;
+	@CommandLine.Option(names = "--network", description = "Path to network", required = true)
+	private Path networkPath;
+	@CommandLine.Option(names = "--output", description = "Path to output population", required = true)
+	private Path output;
+	@CommandLine.Mixin
+	private final ShpOptions shp = new ShpOptions();
+
+	private static final String PLAN_TYPE = "drtPlan";
+
+	public static void main(String[] args) {
+		new PrepareDrtScenarioAgents().execute(args);
+	}
+
+	@Override
+	public Integer call() throws Exception {
+		if (!Files.exists(input)) {
+			log.error("Input population does not exist: {}", input);
+			return 2;
+		}
+
+		if (!shp.isDefined()) {
+			log.error("service area shape file is not defined: {}", shp);
+			return 2;
+		}
+
+		Population population = PopulationUtils.readPopulation(input.toString());
+		Network network = NetworkUtils.readNetwork(networkPath.toString());
+
+		convertPtToDrtTrips(population, network, shp);
+
+		PopulationUtils.writePopulation(population, output.toString());
+
+		return 0;
+	}
+
+	/**
+	 * This is implemented as a separate method to be able to use it in a scenario run class.
+	 * Additionally, it can be used to write a new output population by calling this class.
+	 */
+	public static void convertPtToDrtTrips(Population population, Network network, ShpOptions shp) {
+		Geometry serviceArea = shp.getGeometry();
+
+		AnalysisMainModeIdentifier identifier = new DefaultAnalysisMainModeIdentifier();
+
+		log.info("Starting to iterate through population.");
+
+		int count = 0;
+		for (Person person : population.getPersons().values()) {
+			Plan selected = person.getSelectedPlan();
+//			remove all unselected plans
+			for (Plan plan : Lists.newArrayList(person.getPlans())) {
+				if (plan != selected)
+					person.removePlan(plan);
+			}
+
+			for (TripStructureUtils.Trip trip : TripStructureUtils.getTrips(selected)) {
+
+				String tripMode = identifier.identifyMainMode(trip.getTripElements());
+
+				if (!tripMode.equals(TransportMode.pt)) {
+					continue;
+				}
+
+				boolean startInside = isInside(network.getLinks().get(trip.getLegsOnly().getFirst().getRoute().getStartLinkId()), serviceArea);
+				boolean endInside = isInside(network.getLinks().get(trip.getLegsOnly().getLast().getRoute().getEndLinkId()), serviceArea);
+
+//				we only need to change the mode for trips within the drt service area.
+//				All others will be handled by intermodal trips between drt and pt.
+//				"other" would be ending in service area but not starting and vice versa
+				if (startInside && endInside) {
+					int oldIndex = selected.getPlanElements().indexOf(trip.getLegsOnly().stream().filter(l -> l.getMode().equals(TransportMode.pt)).toList().getFirst());
+
+					int index = convertPtTripToLeg(trip, selected, identifier);
+
+//					copy pt plan and create drt plan. Tag it as drtPlan
+					Plan drtCopy = person.createCopyOfSelectedPlanAndMakeSelected();
+					((Leg) drtCopy.getPlanElements().get(index)).setMode(TransportMode.drt);
+					drtCopy.setType(PLAN_TYPE);
+					count++;
+				}
+			}
+		}
+		log.info("For {} trips, a copy of the selected plan with a drt trip has been created.", count);
+	}
+
+	private static int convertPtTripToLeg(TripStructureUtils.Trip trip, Plan selected, AnalysisMainModeIdentifier identifier) {
+		final List<PlanElement> planElements = selected.getPlanElements();
+
+//		TODO: test if new leg is pasted at correct index.
+//		TODO: index in this method is always -1. fix this
+
+		final List<PlanElement> fullTrip =
+			planElements.subList(
+				planElements.indexOf(trip.getOriginActivity()) + 1,
+				planElements.indexOf(trip.getDestinationActivity()));
+		final String mode = identifier.identifyMainMode(fullTrip);
+		fullTrip.clear();
+		Leg leg = PopulationUtils.createLeg(mode);
+		TripStructureUtils.setRoutingMode(leg, mode);
+		int index = planElements.indexOf(leg);
+		fullTrip.add(leg);
+		if ( fullTrip.size() != 1 ) throw new IllegalArgumentException(fullTrip.toString());
+		return index;
+	}
+
+	private static boolean isInside(Link link, Geometry geometry) {
+		return MGC.coord2Point(link.getFromNode().getCoord()).within(geometry) ||
+			MGC.coord2Point(link.getToNode().getCoord()).within(geometry);
+	}
+}