diff --git a/astar/Astar.cs b/astar/Astar.cs
index d1cec7f..eef34a6 100644
--- a/astar/Astar.cs
+++ b/astar/Astar.cs
@@ -109,6 +109,8 @@ namespace astar
                     continue;
                 if(!way.AccessPermitted())
                     continue;
+                if (car && !way.IsPriorityRoad())
+                    speed = (byte)(speed * 0.75f);
                 
                 if(wayId.Value && way.GetDirection() == (fromStart ? WayDirection.Backwards : WayDirection.Forwards) && car)
                     continue;