diff --git a/Car.py b/Car.py
index e8db4bb..1402ee0 100644
--- a/Car.py
+++ b/Car.py
@@ -35,7 +35,7 @@ class Car():
 
         #print(f"{self.id} : {startEdge.getID()} -> {nextEdge.getID()} via {laneId}")
     
-    def __init__(self,carID,route,parentMap,parentController,infoWidg):
+    def __init__(self,carID,route,startTime,parentMap,parentController,infoWidg):
         self.id=carID
         self.map=parentMap
         self.controller=parentController
@@ -46,6 +46,8 @@ class Car():
         self.laneShape=None
         self.laneId=0
         self.leader=None
+        self.startTime=float(startTime)
+
         self.signals=updateSignals()
         self.signals.updateDisp.connect(self.infoWidg.setVal)
         self.signals.addGraphPt.connect(self.infoWidg.addSpeedPoint)
@@ -166,6 +168,9 @@ class Car():
         self.signals.addGraphPt.emit((1,self.controller.t,vsec))
 
     def update(self,dt):
+        if self.controller.t < self.startTime:
+            return
+
         self.leader=self.getLeader(100)
 
         self.conduite(self.vmax,self.leader,dt)
diff --git a/CarController.py b/CarController.py
index 0b121d9..d95a8e8 100644
--- a/CarController.py
+++ b/CarController.py
@@ -84,7 +84,7 @@ class CarController:
         for vehicle in sumolib.xml.parse(path,"vehicle"):
             route=vehicle.route[0].edges.split()
             wId=self.infoWidget.addItem(carInfo(self.infoWidget), vehicle.id)
-            self.cars.append(Car(vehicle.id,route,self.map,self,self.infoWidget.widget(wId)))
+            self.cars.append(Car(vehicle.id,route,vehicle.depart,self.map,self,self.infoWidget.widget(wId)))
 
     def prepareRoute(self):
         for car in self.cars:
@@ -100,7 +100,7 @@ class CarController:
     def update(self):
         if self.map.net is None:
             return
-        self.t+=1
+        self.t+=1/60
         for car in self.cars:
             car.update(1.0/60)
 
diff --git a/test5.rou.xml b/test5.rou.xml
index 9f94f9b..c55f64b 100644
--- a/test5.rou.xml
+++ b/test5.rou.xml
@@ -44,22 +44,22 @@
     <vehicle id="vehicle_0" depart="0.00">
         <route edges="gneE13 gneE16 gneE19 gneE22 gneE23 gneE31" color="cyan"/>
     </vehicle>
-    <vehicle id="vehicle_1" depart="0.00">
+    <vehicle id="vehicle_1" depart="1.00">
         <route edges="gneE13 gneE16 gneE26 gneE20 gneE23 gneE31" color="cyan"/>
     </vehicle>
-    <vehicle id="vehicle_2" depart="0.00">
+    <vehicle id="vehicle_2" depart="2.00">
         <route edges="gneE13 gneE24 gneE17 gneE20 gneE23 gneE31" color="cyan"/>
     </vehicle>
-    <vehicle id="vehicle_3" depart="0.00">
+    <vehicle id="vehicle_3" depart="3.00">
         <route edges="gneE14 gneE17 gneE20 gneE23 gneE31" color="cyan"/>
     </vehicle>
-    <vehicle id="vehicle_4" depart="0.00">
+    <vehicle id="vehicle_4" depart="4.00">
         <route edges="gneE14 gneE28 gneE18 gneE21 gneE23 gneE31" color="cyan"/>
     </vehicle>
-    <vehicle id="vehicle_5" depart="0.00">
+    <vehicle id="vehicle_5" depart="5.00">
         <route edges="gneE14 gneE17 gneE27 gneE21 gneE23 gneE31" color="cyan"/>
     </vehicle>
-    <vehicle id="vehicle_6" depart="0.00">
+    <vehicle id="vehicle_6" depart="6.00">
         <route edges="gneE15 gneE18 gneE21 gneE23 gneE31" color="cyan"/>
     </vehicle>
 </routes>