diff --git a/pom.xml b/pom.xml
index bc893b5..9385e7c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>de.srsoftware</groupId>
 	<artifactId>web4rail</artifactId>
-	<version>1.4.12</version>
+	<version>1.4.13</version>
 	<name>Web4Rail</name>
 	<packaging>jar</packaging>
 	<description>Java Model Railway Control</description>
diff --git a/src/main/java/de/srsoftware/web4rail/Route.java b/src/main/java/de/srsoftware/web4rail/Route.java
index 681540c..8244396 100644
--- a/src/main/java/de/srsoftware/web4rail/Route.java
+++ b/src/main/java/de/srsoftware/web4rail/Route.java
@@ -36,6 +36,7 @@ import de.srsoftware.web4rail.tags.Input;
 import de.srsoftware.web4rail.tags.Table;
 import de.srsoftware.web4rail.tags.Window;
 import de.srsoftware.web4rail.threads.RoutePrepper;
+import de.srsoftware.web4rail.threads.Simulator;
 import de.srsoftware.web4rail.tiles.Block;
 import de.srsoftware.web4rail.tiles.BlockContact;
 import de.srsoftware.web4rail.tiles.Contact;
@@ -855,6 +856,10 @@ public class Route extends BaseClass {
 		return this;
 	}
 	
+	private void simulate() {
+		new Simulator(this);
+	}
+	
 	public boolean startNow() {		
 		LOG.debug("{}.startNow()",this);
 		
@@ -885,6 +890,8 @@ public class Route extends BaseClass {
 		}
 		
 		context.waitTime(endBlock.getWaitTime(train, endDirection).random());
+		
+		if (!contacts.isEmpty() && contacts.stream().filter(contact -> contact.addr() != 0).findAny().isEmpty()) simulate();
 		return true;
 	}
 
diff --git a/src/main/java/de/srsoftware/web4rail/threads/Simulator.java b/src/main/java/de/srsoftware/web4rail/threads/Simulator.java
new file mode 100644
index 0000000..e776cef
--- /dev/null
+++ b/src/main/java/de/srsoftware/web4rail/threads/Simulator.java
@@ -0,0 +1,26 @@
+package de.srsoftware.web4rail.threads;
+
+import de.srsoftware.web4rail.Application;
+import de.srsoftware.web4rail.BaseClass;
+import de.srsoftware.web4rail.Route;
+import de.srsoftware.web4rail.tiles.Contact;
+import de.srsoftware.web4rail.tiles.Tile;
+
+public class Simulator extends BaseClass implements Runnable {
+
+	private Route route;
+
+	public Simulator(Route route) {
+		this.route = route;
+		new Thread(this,Application.threadName(this)).start();
+	}
+
+	@Override
+	public void run() {
+		for (Tile tile : route.path()) {
+			sleep(1000);
+			if (tile instanceof Contact) ((Contact)tile).activate(true);
+		}
+	}
+
+}
diff --git a/src/main/java/de/srsoftware/web4rail/tiles/Bridge.java b/src/main/java/de/srsoftware/web4rail/tiles/Bridge.java
index db6252d..e1068e4 100644
--- a/src/main/java/de/srsoftware/web4rail/tiles/Bridge.java
+++ b/src/main/java/de/srsoftware/web4rail/tiles/Bridge.java
@@ -66,6 +66,20 @@ public abstract class Bridge extends Tile {
 		return super.load(json);
 	}
 	
+	@Override
+	public boolean lockFor(Context context, boolean downgrade) {
+		if (lockingTrain() == context.train()) return true;
+		if (!super.lockFor(context, downgrade)) return false;
+		return isSet(counterpart) ? counterpart.lockFor(context, downgrade) : true;
+	}
+	
+	@Override
+	public boolean reserveFor(Context context) {
+		if (reservingTrain() == context.train()) return true;
+		if (!super.reserveFor(context)) return false;		
+		return isSet(counterpart) ? counterpart.reserveFor(context) : true;
+	}
+	
 	@Override
 	public boolean setTrain(Train newTrain) {
 		if (occupyingTrain() == newTrain) return true;
diff --git a/src/main/java/de/srsoftware/web4rail/tiles/Tile.java b/src/main/java/de/srsoftware/web4rail/tiles/Tile.java
index a5cbe6b..c07e125 100644
--- a/src/main/java/de/srsoftware/web4rail/tiles/Tile.java
+++ b/src/main/java/de/srsoftware/web4rail/tiles/Tile.java
@@ -434,6 +434,10 @@ public abstract class Tile extends BaseClass implements Comparable<Tile> {
 		plan.place(this);
 		return true;
 	}
+	
+	protected Train reservingTrain() {
+		return reservingTrain;
+	}
 
 	public TreeSet<Route> routes() {
 		return routes;