diff --git a/server/router/tncroute/controller.go b/server/router/tncroute/controller.go
index 336dfce..0bea613 100644
--- a/server/router/tncroute/controller.go
+++ b/server/router/tncroute/controller.go
@@ -13,6 +13,7 @@ import (
 	"bitbucket.org/nemt/nemt-portal-api/application/tncservice"
 	"bitbucket.org/nemt/nemt-portal-api/application/viewmodel"
 	"bitbucket.org/nemt/nemt-portal-api/infra/auth"
+	"bitbucket.org/nemt/nemt-portal-api/infra/errors"
 	"bitbucket.org/nemt/nemt-portal-api/infra/config"
 	"bitbucket.org/nemt/nemt-portal-api/server/router/routeutils"
 	"bitbucket.org/nemt/nemt-portal-api/server/validation"
@@ -24,6 +25,18 @@ import (
 	"github.com/gorilla/websocket"
 )
 
+const (
+	tripTypeFromVisit			= "From Visit"
+	tripTypeToVisit				= "To Visit"
+	tripTypeFromVisitWillCall	= "From Visit / Will Call"
+	tripTypeRoundTrip			= "Round Trip"
+	tripTypeRountTripWillCall	= "Round Trip / Will Call"
+)
+
+const (
+	loadingTime					= 30 //in minutes
+)
+
 var (
 	instance *controller
 	once     sync.Once