diff --git a/ArmoredCar/ArmoredCar/MapsCollection.cs b/ArmoredCar/ArmoredCar/MapsCollection.cs
index 2fda741..6d7db7a 100644
--- a/ArmoredCar/ArmoredCar/MapsCollection.cs
+++ b/ArmoredCar/ArmoredCar/MapsCollection.cs
@@ -40,16 +40,18 @@ namespace ArmoredCar
         /// <param name="name">Название карты</param>
         /// <param name="map">Карта</param>
         public void AddMap(string name, AbstractMap map)
-        {          
-            _mapStorages.Add(name, new MapWithSetArmoredCarsGeneric<DrawningObjectArmCar, AbstractMap>(_pictureWidth, _pictureHeight, map));
+        {
+            if (!Keys.Contains(name))
+                _mapStorages.Add(name, new MapWithSetArmoredCarsGeneric<DrawningObjectArmCar, AbstractMap>(_pictureWidth, _pictureHeight, map));
         }
         /// <summary>
         /// Удаление карты
         /// </summary>
         /// <param name="name">Название карты</param>
         public void DelMap(string name)
-        {            
-            _mapStorages.Remove(name);
+        {   
+            if (Keys.Contains(name))
+                _mapStorages.Remove(name);
         }
         /// <summary>
         /// Доступ к парковке