diff --git a/jsprit-core/src/main/java/jsprit/core/algorithm/ruin/RuinRadialMultipleCenters.java b/jsprit-core/src/main/java/jsprit/core/algorithm/ruin/RuinRadialMultipleCenters.java
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+/*******************************************************************************
+ * Copyright (C) 2014  Stefan Schroeder
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3.0 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public 
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ ******************************************************************************/
+package jsprit.core.algorithm.ruin;
+
+import jsprit.core.algorithm.ruin.distance.JobDistance;
+import jsprit.core.problem.VehicleRoutingProblem;
+import jsprit.core.problem.job.Job;
+import jsprit.core.problem.solution.route.VehicleRoute;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import java.util.*;
+
+
+/**
+ * 
+ * RuinStrategy that ruins the neighborhood of a randomly selected job. The size and the structure of the neighborhood is defined by 
+ * the share of jobs to be removed and the distance between jobs (where distance not necessarily mean Euclidean distance but an arbitrary 
+ * measure).
+ * 
+ * @author stefan
+ *
+ */
+public final class RuinRadialMultipleCenters extends AbstractRuinStrategy {
+
+	private Logger logger = LogManager.getLogger(RuinRadialMultipleCenters.class);
+
+	private VehicleRoutingProblem vrp;
+
+	private JobNeighborhoods jobNeighborhoods;
+
+	private final int noJobsToMemorize;
+
+	private int noCenters = 1;
+
+	public RuinRadialMultipleCenters(VehicleRoutingProblem vrp, int neighborhoodSize, JobDistance jobDistance) {
+		super();
+		this.vrp = vrp;
+		noJobsToMemorize = neighborhoodSize;
+		ruinShareFactory = new RuinShareFactory() {
+
+			@Override
+			public int createNumberToBeRemoved() {
+				return noJobsToMemorize;
+			}
+
+		};
+		JobNeighborhoodsImplWithCapRestriction jobNeighborhoodsImpl = new JobNeighborhoodsImplWithCapRestriction(vrp, jobDistance, noJobsToMemorize);
+		jobNeighborhoodsImpl.initialise();
+		jobNeighborhoods = jobNeighborhoodsImpl;
+		logger.info("initialise " + this);
+	}
+
+	public void setNumberOfRuinCenters(int noCenters){
+		this.noCenters = noCenters;
+	}
+	
+	@Override
+	public String toString() {
+		return "[name=radialRuin][noJobsToBeRemoved="+noJobsToMemorize+"]";
+	}
+
+	/**
+	 * Ruins the collection of vehicleRoutes, i.e. removes a share of jobs. First, it selects a job randomly. Second, it identifies its neighborhood. And finally, it removes 
+	 * the neighborhood plus the randomly selected job from the number of vehicleRoutes. All removed jobs are then returned as a collection.
+	 */
+	@Override
+	public Collection<Job> ruinRoutes(Collection<VehicleRoute> vehicleRoutes) {
+		if(vehicleRoutes.isEmpty()){
+			return Collections.emptyList();
+		}
+		Set<Job> available = new HashSet<Job>(vrp.getJobs().values());
+		Collection<Job> ruined = new ArrayList<Job>();
+		for(int center=0;center<noCenters;center++) {
+			int nOfJobs2BeRemoved = ruinShareFactory.createNumberToBeRemoved();
+			if (nOfJobs2BeRemoved == 0) {
+				return Collections.emptyList();
+			}
+			Job randomJob = pickRandomJob(available);
+			if(randomJob != null) {
+				ruined.addAll(ruinRoutes_(vehicleRoutes, randomJob, nOfJobs2BeRemoved, available));
+			}
+		}
+		return ruined;
+	}
+	
+	/**
+	 * Removes targetJob and its neighborhood and returns the removed jobs.
+     * @deprecated will be private
+	 */
+    @Deprecated
+	public Collection<Job> ruinRoutes(Collection<VehicleRoute> vehicleRoutes, Job targetJob, int nOfJobs2BeRemoved){
+		return ruinRoutes_(vehicleRoutes,targetJob,nOfJobs2BeRemoved,null);
+	}
+
+	private Collection<Job> ruinRoutes_(Collection<VehicleRoute> vehicleRoutes, Job targetJob, int nOfJobs2BeRemoved, Set<Job> available){
+		List<Job> unassignedJobs = new ArrayList<Job>();
+		int nNeighbors = nOfJobs2BeRemoved - 1;
+		removeJob(targetJob,vehicleRoutes);
+		unassignedJobs.add(targetJob);
+		Iterator<Job> neighborhoodIterator =  jobNeighborhoods.getNearestNeighborsIterator(nNeighbors, targetJob);
+		while(neighborhoodIterator.hasNext()){
+			Job job = neighborhoodIterator.next();
+			if(available!=null) available.remove(job);
+			removeJob(job,vehicleRoutes);
+			unassignedJobs.add(job);
+		}
+		return unassignedJobs;
+	}
+
+	private Job pickRandomJob(Set<Job> available) {
+		int randomIndex = random.nextInt(available.size());
+		int i=0;
+		for(Job j : available){
+			if(i>=randomIndex) {
+				return j;
+			}
+			else i++;
+		}
+		return null;
+    }
+
+}