diff --git a/server/router/tncroute/controller.go b/server/router/tncroute/controller.go
index 0bea613..3d2898d 100644
--- a/server/router/tncroute/controller.go
+++ b/server/router/tncroute/controller.go
@@ -35,6 +35,8 @@ const (
 
 const (
 	loadingTime					= 30 //in minutes
+	minimumLoadTime				= 30 //in minutes
+	minimumPickupTime			= 0  //in minutes
 )
 
 var (